How To Replace A Thermostat On A Hot Water Heater?

How To Replace A Water Heater Thermostat

Please keep in mind that this content may contain affiliate links. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. When changing one thermostat, it’s a good idea to go ahead and replace both the higher and lower thermostats as well as the thermostat in the middle.

Testing the Thermostats on a Dual Element Water Heater

Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for these models only. A multimeter and a screwdriver will be required for this test. It is possible to get an excellent, affordable multimeter either online or at your local hardware shop. Putting the UPPER thermostat through its paces:

1. Immediately turn off the water heater’s electricity.
2. Remove the panels that provide access to the elements, as well as the insulation beneath them
4. Make use of a screwdriver to raise the top thermostat to its maximum position.
5. Reduce the temperature of the bottom thermostat to its smallest level.
6. Restart the water heater by turning the power back on.
7. The two wires above and next to the reset button should be checked to ensure that electricity is being supplied to the water heater. The voltage should be shown as 240 volts.
8. Check the power on the upper element terminal screws with your multimeter to ensure they are not faulty. If there is no power, the thermostat is defective and must be replaced. Ensure that the lower thermostat is operational if there is electricity.

Putting the LOWER thermostat through its paces:

1. Reduce the temperature of the top thermostat to its lowest setting
3. Increase the temperature of the bottom thermostat to its maximum setting
5. Check to see whether there is voltage on the bottom component. In case the multimeter indicates that the element is powered, let a few minutes to pass before using the water to heat it. Turn down the thermostat’s temperature setting and listen for an audible click, which shows that the thermostat is operating properly.

• Whether there is no voltage at the element, check to see if there is power at the lower thermostat. In order to test the top contact screw, place one of the multimeter probes there and another probe on the metal shell of the water tank. It should display a voltage measurement of about 120 volts.
• The top thermostat, which supplies voltage to the lower thermostat, will need to be replaced if there is no indication of operation.
• Place one probe on the lower contact screw of the water tank and the second probe on the metal casing of the water tank if a reading is obtained. It should display around 120 volts. If this is not the case, the lower thermostat will have to be changed.

Electric Water Heater Thermostat Replacement

Step 1

1. Before working on a water heater, make sure the electricity is turned off or the breaker is turned off.
2. You will need to remove the access panel and the safety cover in order to change the thermostats (do this for both upper and lower access panels on dual element units).
3. Make sure the power is turned off with a voltage meter for the sake of safety before proceeding.
4. Make a basic schematic of how the wires are linked to the diagram and label it accordingly.
5. Remove the wires from the thermostat and set them aside.

Step 2

1. In order for the thermostat to sense the internal water temperature, it must be secured in place by means of a particular bracket that clamps down on it tightly against the tank wall.
2. Remove one side of the bracket by gently prying it out while twisting the other side of the thermostat upwards to prevent the bracket from locking back into place.
3. Repeat the process on the opposite side.
4. On dual element versions, repeat the process with the lower thermostat.

Step 3

To purchase a replacement thermostat, bring the old thermostat(s) with you. Despite the fact that most thermostats are interchangeable, the greatest results are obtained by precisely matching the parts.

Step 4

If the bracket was broken during the removal of the thermostat, you can purchase a replacement bracket at the same time. When the old bracket is removed, the new one should be placed flat against the tank and dragged downward until it is securely in place.

Step 5

1. Each thermostat should be replaced by sliding it uniformly downward into the retaining bracket until it locks into position.
2. Replace the wire in the exact same manner as it was removed.
3. Replace the safety cover(s) and the access panel if they are damaged (s).
4. Restore electricity to the water heater and allow it to run for one hour before checking the hot water pressure.
5. If you believe that a heating element has failed as well, read How To Replace A Water Heater Element for more information.

Gas Water Heater Thermostat Replacement

1. Gas water heaters employ a different sort of thermostat system than electric water heaters.
2. Generally speaking, on gas water heaters, the gas control valve, which incorporates both an adjustable thermostat and a heat limiting mechanism, is positioned on the outside of the unit, near the bottom.
3. It may be distinguished from other components by the fact that it has temperature and pilot light controls.
4. If the thermostat on a gas water heater malfunctions, you will need to replace the gas control valve component that controls the gas flow.
5. Is it necessary to replace a water heater thermocouple or an electric water heater element?

Take a look at our articles on the subject!

Easy Steps for a Hot Water Heater Thermostat Replacement

1. The thermostat in your home may have stopped functioning properly, and before you replace it, you should ensure that the gadget has been tested thoroughly.
2. Why?
3. Both an upper and lower element are used in a significant proportion of the water heaters now on the market.
4. It is critical that you identify the specific component that is not functioning properly.
5. A multimeter and a screwdriver will be required in order to test your thermostat.

Take the actions outlined below:

Testing your water heater’s upper thermostat:

1. Your water heater’s electricity should be turned off.
2. Locate and gently remove the access panels from the wall. Remove the insulation from beneath the floor as well.
3. It is now necessary to adjust the top thermostat to the highest level it will allow. This may be accomplished with a regular screwdriver.
4. It is now necessary to adjust the lower thermostat to the lowest level that is possible.
5. Restart your water heater by turning the power back on.
6. The two wires that are located above the reset button should be identified and tested using a multimeter. 240 volts should be displayed on your multimeter.
7. Locate and test the top element terminal screws using the multimeter, as well as the lower element terminal screws. You will know if your water heater’s thermostat is malfunctioning because you will not be able to turn on the water heater.

Testing your water heater’s lower thermostat:

1. While maintaining complete power failure, adjust the top thermostat to its lowest possible setting and the lower thermostat to its highest possible setting
3. Whether there is electricity coming from the bottom element, check with the multimeter to verify if it is there. If there is voltage, wait for the water to become heated before proceeding further. This may just take a few minutes
4. however,
5. You would like to lower the temperature on the thermostat at this point. It is possible to hear an audible click if the thermostat is running properly
6. nevertheless, if the multimeter indicates that there is no voltage flowing from the element, you should check the lower thermostat for power. Take one of the probes from the multimeter and place it against the top contact screw to complete the test. Take the other probe and gently press it against the metal shell of the water tank to test it. In order for your multimeter to be in proper operating order, it should read no more than 120 volts.

Replacing your thermostat:

1. Turn off the electricity
3. Remove the water heater’s access panel and safety cover
4. next, remove the tank.
5. Carefully pry away the bracket that is keeping the thermostat in its position.
6. Removing the old thermostat and replacing it with a new one is necessary.
7. Replace the brackets and make certain that the wiring is rejoined in the same manner as it was previously detached.
8. Reinstall the access panel and safety cover, and then turn on the electricity.

• You should keep in mind that while you’re changing a gas water heater thermostat, the gas control valve, the thermostat, and the heat-limiter all have to be installed on the exterior of the tank. Recent Posts by the Author

When he was 14 years old, he began his plumbing profession while still a student in high school. Kevin Sharp graduated with honors from Illinois State University with a bachelor’s degree in journalism. Kevin L. Sharp’s most recent blog entries (See all of them)

How To Replace A Water Heater Thermostat

Please keep in mind that this content may contain affiliate links. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. When changing one thermostat, it’s a good idea to go ahead and replace both the higher and lower thermostats as well as the thermostat in the middle.

Testing the Thermostats on a Dual Element Water Heater

Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for these models only. A multimeter and a screwdriver will be required for this test. It is possible to get an excellent, affordable multimeter either online or at your local hardware shop. Putting the UPPER thermostat through its paces:

1. Immediately turn off the water heater’s electricity.
2. Remove the panels that provide access to the elements, as well as the insulation beneath them
4. Make use of a screwdriver to raise the top thermostat to its maximum position.
5. Reduce the temperature of the bottom thermostat to its smallest level.
6. Restart the water heater by turning the power back on.
7. The two wires above and next to the reset button should be checked to ensure that electricity is being supplied to the water heater. The voltage should be shown as 240 volts.
8. Check the power on the upper element terminal screws with your multimeter to ensure they are not faulty. If there is no power, the thermostat is defective and must be replaced. Ensure that the lower thermostat is operational if there is electricity.

Putting the LOWER thermostat through its paces:

1. Reduce the temperature of the top thermostat to its lowest setting
3. Increase the temperature of the bottom thermostat to its maximum setting
5. Check to see whether there is voltage on the bottom component. In case the multimeter indicates that the element is powered, let a few minutes to pass before using the water to heat it. Turn down the thermostat’s temperature setting and listen for an audible click, which shows that the thermostat is operating properly.

• Whether there is no voltage at the element, check to see if there is power at the lower thermostat. In order to test the top contact screw, place one of the multimeter probes there and another probe on the metal shell of the water tank. It should display a voltage measurement of about 120 volts.
• The top thermostat, which supplies voltage to the lower thermostat, will need to be replaced if there is no indication of operation.
• Place one probe on the lower contact screw of the water tank and the second probe on the metal casing of the water tank if a reading is obtained. It should display around 120 volts. If this is not the case, the lower thermostat will have to be changed.

Electric Water Heater Thermostat Replacement

Step 1

1. Before working on a water heater, make sure the electricity is turned off or the breaker is turned off.
2. You will need to remove the access panel and the safety cover in order to change the thermostats (do this for both upper and lower access panels on dual element units).
3. Make sure the power is turned off with a voltage meter for the sake of safety before proceeding.
4. Make a basic schematic of how the wires are linked to the diagram and label it accordingly.
5. Remove the wires from the thermostat and set them aside.

Step 2

1. In order for the thermostat to sense the internal water temperature, it must be secured in place by means of a particular bracket that clamps down on it tightly against the tank wall.
2. Remove one side of the bracket by gently prying it out while twisting the other side of the thermostat upwards to prevent the bracket from locking back into place.
3. Repeat the process on the opposite side.
4. On dual element versions, repeat the process with the lower thermostat.

Step 3

To purchase a replacement thermostat, bring the old thermostat(s) with you. Despite the fact that most thermostats are interchangeable, the greatest results are obtained by precisely matching the parts.

Step 4

If the bracket was broken during the removal of the thermostat, you can purchase a replacement bracket at the same time. When the old bracket is removed, the new one should be placed flat against the tank and dragged downward until it is securely in place.

Step 5

1. Each thermostat should be replaced by sliding it uniformly downward into the retaining bracket until it locks into position.
2. Replace the wire in the exact same manner as it was removed.
3. Replace the safety cover(s) and the access panel if they are damaged (s).
4. Restore electricity to the water heater and allow it to run for one hour before checking the hot water pressure.
5. If you believe that a heating element has failed as well, read How To Replace A Water Heater Element for more information.

Gas Water Heater Thermostat Replacement

1. Gas water heaters employ a different sort of thermostat system than electric water heaters.
2. Generally speaking, on gas water heaters, the gas control valve, which incorporates both an adjustable thermostat and a heat limiting mechanism, is positioned on the outside of the unit, near the bottom.
3. It may be distinguished from other components by the fact that it has temperature and pilot light controls.
4. If the thermostat on a gas water heater malfunctions, you will need to replace the gas control valve component that controls the gas flow.
5. Is it necessary to replace a water heater thermocouple or an electric water heater element?

Take a look at our articles on the subject!

How To Replace A Water Heater Thermostat

Please keep in mind that this content may contain affiliate links. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. When changing one thermostat, it’s a good idea to go ahead and replace both the higher and lower thermostats as well as the thermostat in the middle.

Testing the Thermostats on a Dual Element Water Heater

Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for these models only. A multimeter and a screwdriver will be required for this test. It is possible to get an excellent, affordable multimeter either online or at your local hardware shop. Putting the UPPER thermostat through its paces:

1. Immediately turn off the water heater’s electricity.
2. Remove the panels that provide access to the elements, as well as the insulation beneath them
4. Make use of a screwdriver to raise the top thermostat to its maximum position.
5. Reduce the temperature of the bottom thermostat to its smallest level.
6. Restart the water heater by turning the power back on.
7. The two wires above and next to the reset button should be checked to ensure that electricity is being supplied to the water heater. The voltage should be shown as 240 volts.
8. Check the power on the upper element terminal screws with your multimeter to ensure they are not faulty. If there is no power, the thermostat is defective and must be replaced. Ensure that the lower thermostat is operational if there is electricity.

Putting the LOWER thermostat through its paces:

1. Reduce the temperature of the top thermostat to its lowest setting
3. Increase the temperature of the bottom thermostat to its maximum setting
5. Check to see whether there is voltage on the bottom component. In case the multimeter indicates that the element is powered, let a few minutes to pass before using the water to heat it. Turn down the thermostat’s temperature setting and listen for an audible click, which shows that the thermostat is operating properly.

• Whether there is no voltage at the element, check to see if there is power at the lower thermostat. In order to test the top contact screw, place one of the multimeter probes there and another probe on the metal shell of the water tank. It should display a voltage measurement of about 120 volts.
• The top thermostat, which supplies voltage to the lower thermostat, will need to be replaced if there is no indication of operation.
• Place one probe on the lower contact screw of the water tank and the second probe on the metal casing of the water tank if a reading is obtained. It should display around 120 volts. If this is not the case, the lower thermostat will have to be changed.

Electric Water Heater Thermostat Replacement

Step 1

1. Before working on a water heater, make sure the electricity is turned off or the breaker is turned off.
2. You will need to remove the access panel and the safety cover in order to change the thermostats (do this for both upper and lower access panels on dual element units).
3. Make sure the power is turned off with a voltage meter for the sake of safety before proceeding.
4. Make a basic schematic of how the wires are linked to the diagram and label it accordingly.
5. Remove the wires from the thermostat and set them aside.

Step 2

1. In order for the thermostat to sense the internal water temperature, it must be secured in place by means of a particular bracket that clamps down on it tightly against the tank wall.
2. Remove one side of the bracket by gently prying it out while twisting the other side of the thermostat upwards to prevent the bracket from locking back into place.
3. Repeat the process on the opposite side.
4. On dual element versions, repeat the process with the lower thermostat.

Step 3

To purchase a replacement thermostat, bring the old thermostat(s) with you. Despite the fact that most thermostats are interchangeable, the greatest results are obtained by precisely matching the parts.

Step 4

If the bracket was broken during the removal of the thermostat, you can purchase a replacement bracket at the same time. When the old bracket is removed, the new one should be placed flat against the tank and dragged downward until it is securely in place.

Step 5

1. Each thermostat should be replaced by sliding it uniformly downward into the retaining bracket until it locks into position.
2. Replace the wire in the exact same manner as it was removed.
3. Replace the safety cover(s) and the access panel if they are damaged (s).
4. Restore electricity to the water heater and allow it to run for one hour before checking the hot water pressure.
5. If you believe that a heating element has failed as well, read How To Replace A Water Heater Element for more information.

Gas Water Heater Thermostat Replacement

1. Gas water heaters employ a different sort of thermostat system than electric water heaters.
2. Generally speaking, on gas water heaters, the gas control valve, which incorporates both an adjustable thermostat and a heat limiting mechanism, is positioned on the outside of the unit, near the bottom.
3. It may be distinguished from other components by the fact that it has temperature and pilot light controls.
4. If the thermostat on a gas water heater malfunctions, you will need to replace the gas control valve component that controls the gas flow.
5. Is it necessary to replace a water heater thermocouple or an electric water heater element?

Take a look at our articles on the subject!

How To Replace A Water Heater Thermostat

Please keep in mind that this content may contain affiliate links. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. When changing one thermostat, it’s a good idea to go ahead and replace both the higher and lower thermostats as well as the thermostat in the middle.

Testing the Thermostats on a Dual Element Water Heater

Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for these models only. A multimeter and a screwdriver will be required for this test. It is possible to get an excellent, affordable multimeter either online or at your local hardware shop. Putting the UPPER thermostat through its paces:

1. Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for such units.. A multimeter and a screwdriver will be required for the testing. A nice, affordable multimeter may be found online or at any nearby hardware shop. Examining the thermostat on the UPPER level

Putting the LOWER thermostat through its paces:

1. Reduce the temperature of the top thermostat to its lowest setting
3. Increase the temperature of the bottom thermostat to its maximum setting
5. Check to see whether there is voltage on the bottom component. In case the multimeter indicates that the element is powered, let a few minutes to pass before using the water to heat it. Turn down the thermostat’s temperature setting and listen for an audible click, which shows that the thermostat is operating properly.

• Whether there is no voltage at the element, check to see if there is power at the lower thermostat. In order to test the top contact screw, place one of the multimeter probes there and another probe on the metal shell of the water tank. It should display a voltage measurement of about 120 volts.
• The top thermostat, which supplies voltage to the lower thermostat, will need to be replaced if there is no indication of operation.
• Place one probe on the lower contact screw of the water tank and the second probe on the metal casing of the water tank if a reading is obtained. It should display around 120 volts. If this is not the case, the lower thermostat will have to be changed.

Electric Water Heater Thermostat Replacement

Step 1

1. Before working on a water heater, make sure the electricity is turned off or the breaker is turned off.
2. You will need to remove the access panel and the safety cover in order to change the thermostats (do this for both upper and lower access panels on dual element units).
3. Make sure the power is turned off with a voltage meter for the sake of safety before proceeding.
4. Make a basic schematic of how the wires are linked to the diagram and label it accordingly.
5. Remove the wires from the thermostat and set them aside.

Step 2

1. In order for the thermostat to sense the internal water temperature, it must be secured in place by means of a particular bracket that clamps down on it tightly against the tank wall.
2. Remove one side of the bracket by gently prying it out while twisting the other side of the thermostat upwards to prevent the bracket from locking back into place.
3. Repeat the process on the opposite side.
4. On dual element versions, repeat the process with the lower thermostat.

Step 3

To purchase a replacement thermostat, bring the old thermostat(s) with you. Despite the fact that most thermostats are interchangeable, the greatest results are obtained by precisely matching the parts.

Step 4

If the bracket was broken during the removal of the thermostat, you can purchase a replacement bracket at the same time. When the old bracket is removed, the new one should be placed flat against the tank and dragged downward until it is securely in place.

Step 5

1. Each thermostat should be replaced by sliding it uniformly downward into the retaining bracket until it locks into position.
2. Replace the wire in the exact same manner as it was removed.
3. Replace the safety cover(s) and the access panel if they are damaged (s).
4. Restore electricity to the water heater and allow it to run for one hour before checking the hot water pressure.
5. If you believe that a heating element has failed as well, read How To Replace A Water Heater Element for more information.

Gas Water Heater Thermostat Replacement

1. Gas water heaters employ a different sort of thermostat system than electric water heaters.
2. Generally speaking, on gas water heaters, the gas control valve, which incorporates both an adjustable thermostat and a heat limiting mechanism, is positioned on the outside of the unit, near the bottom.
3. It may be distinguished from other components by the fact that it has temperature and pilot light controls.
4. If the thermostat on a gas water heater malfunctions, you will need to replace the gas control valve component that controls the gas flow.
5. Is it necessary to replace a water heater thermocouple or an electric water heater element?

Take a look at our articles on the subject!

How To Replace A Water Heater Thermostat

Please keep in mind that this content may contain affiliate links. This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. When changing one thermostat, it’s a good idea to go ahead and replace both the higher and lower thermostats as well as the thermostat in the middle.

Testing the Thermostats on a Dual Element Water Heater

Because the majority of electric water heaters employ both an upper and a bottom element, the procedure outlined below is intended for these models only. A multimeter and a screwdriver will be required for this test. It is possible to get an excellent, affordable multimeter either online or at your local hardware shop. Putting the UPPER thermostat through its paces:

1. Immediately turn off the water heater’s electricity.
2. Remove the panels that provide access to the elements, as well as the insulation beneath them
4. Make use of a screwdriver to raise the top thermostat to its maximum position.
5. Reduce the temperature of the bottom thermostat to its smallest level.
6. Restart the water heater by turning the power back on.
7. The two wires above and next to the reset button should be checked to ensure that electricity is being supplied to the water heater. The voltage should be shown as 240 volts.
8. Check the power on the upper element terminal screws with your multimeter to ensure they are not faulty. If there is no power, the thermostat is defective and must be replaced. Ensure that the lower thermostat is operational if there is electricity.

Putting the LOWER thermostat through its paces:

1. Reduce the temperature of the top thermostat to its lowest setting
3. Increase the temperature of the bottom thermostat to its maximum setting
5. Check to see whether there is voltage on the bottom component. In case the multimeter indicates that the element is powered, let a few minutes to pass before using the water to heat it. Turn down the thermostat’s temperature setting and listen for an audible click, which shows that the thermostat is operating properly.

• Whether there is no voltage at the element, check to see if there is power at the lower thermostat. In order to test the top contact screw, place one of the multimeter probes there and another probe on the metal shell of the water tank. It should display a voltage measurement of about 120 volts.
• The top thermostat, which supplies voltage to the lower thermostat, will need to be replaced if there is no indication of operation.
• Place one probe on the lower contact screw of the water tank and the second probe on the metal casing of the water tank if a reading is obtained. It should display around 120 volts. If this is not the case, the lower thermostat will have to be changed.

Electric Water Heater Thermostat Replacement

Step 1

1. Before working on a water heater, make sure the electricity is turned off or the breaker is turned off.
2. You will need to remove the access panel and the safety cover in order to change the thermostats (do this for both upper and lower access panels on dual element units).
3. Make sure the power is turned off with a voltage meter for the sake of safety before proceeding.
4. Make a basic schematic of how the wires are linked to the diagram and label it accordingly.
5. Remove the wires from the thermostat and set them aside.

Step 2

1. In order for the thermostat to sense the internal water temperature, it must be secured in place by means of a particular bracket that clamps down on it tightly against the tank wall.
2. Remove one side of the bracket by gently prying it out while twisting the other side of the thermostat upwards to prevent the bracket from locking back into place.
3. Repeat the process on the opposite side.
4. On dual element versions, repeat the process with the lower thermostat.

Step 3

To purchase a replacement thermostat, bring the old thermostat(s) with you. Despite the fact that most thermostats are interchangeable, the greatest results are obtained by precisely matching the parts.

Step 4

If the bracket was broken during the removal of the thermostat, you can purchase a replacement bracket at the same time. When the old bracket is removed, the new one should be placed flat against the tank and dragged downward until it is securely in place.

Step 5

1. Each thermostat should be replaced by sliding it uniformly downward into the retaining bracket until it locks into position.
2. Replace the wire in the exact same manner as it was removed.
3. Replace the safety cover(s) and the access panel if they are damaged (s).
4. Restore electricity to the water heater and allow it to run for one hour before checking the hot water pressure.
5. If you believe that a heating element has failed as well, read How To Replace A Water Heater Element for more information.

Gas Water Heater Thermostat Replacement

1. Gas water heaters employ a different sort of thermostat system than electric water heaters.
2. Generally speaking, on gas water heaters, the gas control valve, which incorporates both an adjustable thermostat and a heat limiting mechanism, is positioned on the outside of the unit, near the bottom.
3. It may be distinguished from other components by the fact that it has temperature and pilot light controls.
4. If the thermostat on a gas water heater malfunctions, you will need to replace the gas control valve component that controls the gas flow.
5. Is it necessary to replace a water heater thermocouple or an electric water heater element?

Take a look at our articles on the subject!

Test & Replace a Water Heater Thermostat: DIY Guide

We shall almost certainly all be confronted with the situation of a water heater that is not producing any hot water at some point in our lives. We have two options: either contact a qualified plumber or do it ourselves. Fortunately, most water heaters can be repaired reasonably quickly and inexpensively. There are two primary reasons for a water heater not working:

1. the heating elements
2. the thermostats.

1. If you’ve never checked or replaced a water heater thermostat before, the process may appear to be too difficult to do.
2. It’s not too difficult.
3. Fortunately, if you have someone who knows what they’re doing to guide you through the procedure and a few basic tools, the process is pretty simple.
4. When bathing or cleaning, no one enjoys using cold water.
5. If you are experiencing no hot water, we will need to check the water heater thermostat and replace it if necessary.

In this post, we’ll look at how to diagnose your electric water heater thermostat and, if necessary, how to replace it.

How Electric Water Heater Thermostats Work

1. When you begin to realize that your water heater isn’t operating as efficiently as it should, the thermostat is more than likely the source of the problem, or at the very least a contributing factor.
2. No need to repair the entire electric heater when you can save yourself both time and money by just replacing the thermostat instead.
3. Once you’ve gone over the following instructions, it will only take a few minutes……………………..
4. Electric water heater thermostats function by opening and shutting connections, which allow electricity to pass to the heating components of the water heater.
5. The heating components are activated and deactivated in response to demand.

All current domestic water heaters are equipped with two heating elements as well as two temperature controllers.On the side of your electric water heater, there are two panels that contain a thermostat and a heating element, one for each panel.The higher thermostat differs from the lower thermostat in several ways.The higher thermostat is bigger than the lower thermostat, and it regulates the lower thermostat.

1. It is quite rare for both thermostats to fail at the same time (although I do recommend replacing both when one fails).
2. When an upper heating element or thermostat fails, the water heater’s ability to provide hot water is compromised.
3. Whenever a lower heating element or thermostat fails, the top thermostat and heating element will take over and continue to heat water in the upper part of the hot water storage tank.
4. Despite this, you will observe that the hot water runs out quickly or is barely lukewarm.

Are Electric Water Heater Thermostats Universal?

1. No, not all water heater thermostats are designed to be interchangeable.
2. It is important to note that there are certain differences in thermostats between single-element and dual-element water heaters.
3. Additionally, with dual-element water heaters, there is a differential between the top and bottom thermostats.
4. In order to properly select a water heater thermostat, you must first determine the number of elements and the voltage of the water heater in question.
5. It is possible to obtain this information from the data tag located on the side of the water heater.

If the data tag is not there, you may tell the difference between a single-element and a dual-element water heater by counting the number of access panels on the water heater.The voltage is inscribed on the end of the heating element, and it may be read with a magnifying glass.240 volts is the standard voltage for residential dual-element water heaters.There are more than 50 different household tank-style electric water heaters available on the market, and the thermostats on the majority of them are designed to be interchangeable.

1. When making a purchase, it is important to thoroughly read the product description.

Dual-Element Thermostats

1. Typical household water heater thermostats are seen in this photo, which includes an upper and lower thermostat for each.
2. Because it is located above the lower thermostat, the thermostat on the left has a high limit switch, which can be identified by the red reset button.
3. The upper thermostat is in charge of controlling both the upper element and the lower thermostat, respectively.
4. When you look at it from this angle, you can see the bottom thermostat, which regulates the lower element.
5. For a replacement kit that includes two heating elements, upper and lower thermostats, and seals, we recommend the Rheem SP20060 Electric Water Heater Tune-Up Kit, which can be purchased on Amazon.com for about $30.

Consider the Rheem UV11698 UV11698-Thermostat-Electric if you simply want to purchase the top thermostat.A universal upper thermostat produced by Rheem is what it is.You may get a lesser thermostat, such as the Rheem SP11695 Electric Thermostat, if you just require one.It’s a Rheem lower thermostat that’s universally compatible with other brands.

Single-Element Thermostats

• The thermostat seen here is for a water heater with a single heating element. The thermostat is very similar to an upper dual-element thermostat, with the only variation being the amount of wire terminals on the thermostat. In this case, the single element thermostat has just two terminals on the right side and four on the left side, as you can see in the illustration. A single-element thermostat, such as the Camco 07843 Single Element Water Heater Thermostat with HLC, is available for purchase if you require one. This is a single-element thermostat with a built-in high limit switch that is universally applicable. The following is a list of the supplies you’ll require: In addition, you’ll need a 1/4-inch nut driver or a flathead screwdriver, two Phillips screwdrivers, an analog or digital multimeter/voltmeter, and a new thermostat.

How to Test a Water Heater Thermostat for Continuity – Step-By-Step

1. We must examine the thermostats for continuity in order to identify whether or not the thermostat has failed.
2. You’ll need an analog or digital multimeter for this, which you can get here.
3. WARNING: Working with electricity is extremely hazardous and can result in death.
4. Before dealing with wiring or electrical connections, be certain that the power is turned off.
5. Follow these procedures to determine which thermostat is malfunctioning.

Step 1: Turn the power off

Make your go to your circuit board and locate the water heater breaker to switch off the power supply. Discover and switch off the breaker that is labeled ″water heater″ or ″hot water″ in the electrical panel box where the water heater is located.

Step 2: Remove the outside access covers

To remove the access cover from the upper and lower thermostats, use a 1/4-inch nut driver or flathead screwdriver to pry them off. Fold the insulation back over the thermostat to prevent it from being damaged. To keep the insulation out of the way, use tape to hold it in place. Remove the plastic cover that covers the thermostat on the inside of the house.

Step 3: Confirm power is off to the water heater

1. Make sure the water heater is not receiving electricity before working on it with a multimeter before doing anything on the thermostat.
2. If you have a voltage stick, you may also use it to measure the voltage.
3. Connect the top and legs of the multimeter at the same time, using the multimeter connectors.
4. The meter should be set to zero.
5. Touch each leg of the water heater while the black connector is in contact with it to ensure there is no electricity.

Step 4: Check the high limit reset button

• If the manual reset switch, also known as the high limit reset button, has been tripped, it should be replaced. This button may trip if one or more of the following conditions exists: the thermostat contacts have fused closed
• the thermostat contacts have fused open
• the thermostat contacts have fused closed
• the thermostat contacts have fused open
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat contacts have fused closed
• the thermostat
• The thermostat is not in proper working order.
• The heating element has stopped working

Step 5: Disconnect the wiring

Take a photo with your phone or a digital camera to use as a reference if it becomes necessary to identify which cables are connected to which terminal in the future. To detach the wiring from the thermostat terminals, unscrew the terminal screws using a Phillips #2 screwdriver and pull the wiring away from the terminals.

Step 6: Check the thermostat with a multimeter

1. Set the resistance of the multimeter to the lowest ohms possible (typically x10).
2. Using your fingers, squeeze the probes together and adjust the needle to zero to calibrate your meter.
3. To check the resistance of a digital multimeter, set it to the lowest possible value of resistance (usually 200), or, if your multimeter has an option for resistance with tone, choose it.
4. Take one of the black probes from your multimeter and insert it into the screw terminal on the left side of the instrument.
5. Take the red probe and connect it to the other left-side terminal on the other side.

Ideally, the meter should read close to zero if the terminal is in good working order.This means that the thermostat is not functioning properly and must be replaced.This procedure should be repeated for the right-side terminals and the element terminals.For a demonstration, please see the video above.

1. You will need to repeat these procedures for the lower thermostat and element if the higher thermostat and element are working properly.
2. As soon as you have finished testing your water heater thermostat, you may either reconnect the wire and close the access cover, or you can proceed to the next step, which is replacing the thermostat.
3. Assuming you have decided that your thermostats do not require replacement, you may proceed to inspect your heating components.
4. To do so, please see our How to Test and Replace a Bad Water Heating Element page, which includes step-by-step instructions.

How to Replace a Faulty Water Heater Thermostat – Step-By-Step

1. Decide on the ohms of resistance that the multimeter can read (typically x10).
2. Using your fingers, squeeze the probes together and adjust the needle to zero to calibrate the meter.
3. To check the resistance of a digital multimeter, set it to the lowest possible value of resistance (usually 200), or, if your multimeter has an option for resistance with tone, use it.
4. To test the left-side screw terminal, take one of the black probes from your multimeter and insert it there.
5. The red probe should be placed on the other terminal on the left.

Ideally, the meter should be reading near to zero if the terminal is in continuity.The defective thermostat must be replaced if this is not the case.This procedure should be repeated for the right-side terminals and the element terminals, if needed.Check out the video above for an example of how to do it!

1. You will need to repeat these procedures for the lower thermostat and element if the higher thermostat and element are functioning properly.
2. Once you have finished testing your water heater thermostat, you may either rejoin the wires and close the access cover, or you can proceed to the next step, which is to replace the water heater thermostat.
3. You can inspect your heating components next if you have concluded that your thermostats do not require replacement.
4. For more information on how to accomplish this, please see How to Test and Replace a Bad Water Heating Element for a step-by-step guide.

Step 1: Turn the power off

Take a trip over to the circuit breaker box and look for the switch labeled ″Water Heater″ or anything along those lines. It should be turned off, making sure to turn off both switches if it is a 220v switch. If you’re not sure which water heater is causing the problem because of outdated stickers or labels, get a professional to turn them off for you.

Step 2: Remove the outside access covers

1. Remove the cover panel that corresponds to the thermostat that has to be replaced and set the cover panel aside.
2. The coverings for water heater tanks are often located on the side of the tank.
3. Ensure that you do not loose any of the little screws by using the 1/4-inch nut driver or a flathead screwdriver for this section.
4. Remove the insulation from the thermostat as well as the plastic protective cover that covers it.

Step 3: Confirm power is off to the water heater

Each wire should be tested with your multimeter/voltmeter.This may be accomplished by grounding one of the lines and checking each terminal one at a time until the problem is resolved.While you may have shut off the electricity at the breaker, you should always double-check your work using one of these meters to ensure that you haven’t accidentally caused an electrical shock.Connect the top and legs of the multimeter at the same time, using the multimeter connectors.

The meter should read 0 at this point.Touch each leg of the water heater while the black connector is in contact with it to ensure there is no electricity.

Step 4: Disconnect the wiring

Take a photo with your phone or a digital camera to use as a reference if it becomes necessary to identify which cables are connected to which terminal in the future. Disconnect the wiring from each terminal on the thermostat with a Phillips screwdriver #2. Remove the thermostat from the wall.

Step 5: Remove the defective thermostat

Gently remove the old thermostat by pulling outward on the clips and raising the thermostat up and out of the retaining bracket with your finger or a flathead screwdriver. Caution should be exercised to avoid breaking the retainer bracket. It is possible that breaking this retaining clip will result in the need to replace your water heater.

Step 6: Insert the new thermostat

Inserting the new thermostat into the retaining bracket that holds the old thermostat in place will allow you to precisely position the new thermostat.Reconnect the wires to the relevant terminals by twisting them together.If necessary, you can refer to the photograph you took previously for guidance.Check to see that each wire is securely linked to the next.

Check to see that the thermostat is securely attached to the water heater, otherwise the thermostat may not operate correctly.After that, adjust the thermostat to the temperature you like for the water.We recommend that you use water that is no hotter than 120 degrees Fahrenheit.

1. These modifications may be accomplished with the use of a flathead screwdriver.
2. Using this temperature level is critical since anything greater than this can present an immediate scorching risk for youngsters and the elderly.
3. Tips from the experts: If you intend to replace your heating element with a new thermostat, you must first empty your water heater.
4. Some people propose doing a quick change without draining the storage tank; however, I do not encourage this because any mistakes might cause harm to the interior of your house.

1. Draining your water heater, as well as other maintenance suggestions, may be found in our post Water Heater Maintenance Tips for Gas and Electric Tank Water Heaters.
2. –

Step 7: Reattach the cover panels

Now that you’ve completed the replacement, it’s time to seal everything up and double-check your work for mistakes. Remove the plastic protective cover and insulation and replace them with new ones. Reattach the outside access panels if they have been removed.

Step 8: Turn the power back on

Following the completion of the replacement, it’s time to seal everything up and double-check your workmanship. The protective cover and insulation made of plastic should be replaced. Reattach the external access panels if they have been taken off before.

Water Heater Thermostat FAQs

What should water heater thermostats be set at?

Electric water heater thermostats are typically pre-set by the manufacturer to 110 or 120 degrees Fahrenheit, depending on the model.You have the option of increasing the temperature to the maximum setting, which is typically 150 degrees Fahrenheit, if necessary (65 degrees Celsius).The maximum water temperature setting should be no greater than 120 degrees Fahrenheit (48 degrees Celsius), since a higher setting might provide a scorching threat to small children and the elderly.

Should water heater thermostats be set to the same temperature? 

In fact, the top and lower thermostats should both be set at the same temperature. The dip tube is responsible for delivering cold water to the bottom of the tank. Having consistent settings across the tank helps to keep the temperature consistent throughout the tank.

What would cause a water heater thermostat to burn up?

A malfunctioning heating element, a power surge, or just the passage of time can cause a water heater thermostat to burn up.When internal components of water heater thermostats wear out, they become faulty and fail.Even with regular electric currents, an older thermostat may experience failure.If the manual reset switch on your water heater thermostat does not work, the thermostat will need to be repaired or replaced.

Replacement of both thermostats and heating elements should be done at the same time because if one of the heating elements is beginning to fail, it may cause the new thermostat to short out shortly after it is installed, which is not recommended.

Final Thoughts

Simply said, that’s the whole story!Water heaters aren’t too difficult to maintain, and replacing a thermostat can be completed in a matter of minutes if you know what you’re doing and have the right tools.The most important thing to remember while working with electrical equipment is to avoid taking shortcuts.Although it is possible to change your water heater thermostat in a short period of time utilizing the correct skills and tools, doing so is not recommended.

DISCLAIMER: The information provided on HomeInspectionInsider.com is not intended to be professional guidance.Before beginning any job, you should contact with a competent expert and verify that all necessary permits have been obtained.It is owned and operated by Hubert Miles who is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by placing advertisements and links on their websites that direct traffic to Amazon.com (hereinafter referred to as ″Amazon.com″ or ″Amazon.com Associates Program″).

1. As an affiliate, HomeInspectionInsider.com participates in a variety of affiliate programs with other websites.
2. Hubert Miles receives a commission for recommending visitors and commerce to these businesses.

5 Easy Steps For a DIY Water Heater Thermostat Repair

Hot water is a luxury that most of us can’t imagine not having at our disposal.Consider all of the numerous ways you use hot water in your daily life – for dishes, for clothing, for bathing, for mopping, and so forth.After experiencing a water heater failure in your home, you will realize exactly how critical and vital your water heater is to your daily routine and lifestyle.Water heaters are available in a variety of configurations, including electric, propane, and natural gas.

Each operates in a slightly different way, but they both provide the same purposes, which include heating water and storing hot water until it is needed.The thermostat on a water heater is the component that is most frequently broken or interrupted in any water heater.When the thermostat in your water heater malfunctions, you will be unable to monitor or control the temperature of your hot water.

1. It is critical to keep the thermostat in good working order in order to prevent your water from exceeding boiling levels.

When Should You Repair Your Water Heater Thermostat?

When it comes to your water heater, there are a few tell-tale indicators that you should be aware of and pay attention to. Some of the indicators listed below may indicate that your water heater needs to be serviced or repaired.

Your Water is Too Hot

The presence of very hot water is a strong sign that your thermostat is set too high.Other external variables, such as the changing of the seasons, may also contribute to this problem, and you should adjust the suggested setting when the weather changes from cold to warm.If you are unable to reduce the temperature of your water, you may need to replace the entire thermostat or do a thorough inspection for any wiring problems.Locate an expert to assist you in repairing thermostat wiring difficulties in order to avoid injury or further harm.

There’s Not Enough Hot Water

Cold weather conditions can also contribute to a lack of hot water availability. It’s possible that you have chilly pipes that aren’t properly insulated, or that your thermostat has failed. There are a variety of additional concerns that might arise, including loose wiring, broken equipment, and a hot water tank that is too small for your needs.

Water Takes Too Long to Reheat

Electric water heaters are notorious for taking a long time to heat up. Heater reheating time is approximately twice as long as it takes for a gas heater to heat up. If you notice that it is taking even longer to heat, it is possible that there is an issue with the heating components or thermostat.

A Step-by-Step Guide to Repair a Water Heater Thermostat

A water heater’s thermostat is responsible for regulating the temperature of the water.It is possible that if the temperature is adjusted too low, the water will cool before it is sent to the faucet.Furthermore, if the temperature is set too high, you run the danger of being burned or scalded by the water temperature that is emitted from the faucet.How to fix a thermostat when you don’t have hot water is as follows:

1. Find the top and lower thermostats and turn them on.
2. Ensure that both thermostats have adequate electricity.
3. By pressing the button to reset the thermostat, you may assess whether it will or will not function.
4. If there is no power to the upper system, the thermostat should be replaced.
5. If your top system is receiving electricity but there is no hot water, then the upper heating element should be replaced.

The upper and lower thermostats should be identified.
Check the power supply of both thermostats.
To determine whether the thermostat will or will not function, press the button to reset it.
If there is no power to the upper system, the thermostat must be replaced.
If your top system is getting electricity but there is no hot water, the upper heating element should be replaced.

1. Locate Your Water Heater’s Temperature Control Knob.

When the temperature control knob is turned, it is connected to the heater’s heat source, which is normally red and positioned on the front, lower center area of the heater’s body.

2. Look for the Small Black Line or Arrow above the Knob.

A temperature setting may be labeled ″warm″ or ″hot″ in this area, depending on the current temperature setting. This can alternatively be shown by a black line (120 degrees Fahrenheit) or a white line (140 degrees Fahrenheit) (105-110 degrees Fahrenheit).

3. Adjust the Temperature Somewhere Between 105 and 120 Degrees Fahrenheit.

When to Repair or Replace A Water Heater Thermostat

• What factors should you consider before deciding whether to repair or replace your water heater? As a general rule, if there isn’t a leak, the damage is minor and can usually be fixed quickly and simply. If your water heater is experiencing tank wear or corrosion, for example, these are the most typical problems you’ll encounter. These are often minor concerns that may be resolved with minimal effort. If your tank is leaking, it is preferable for you to replace it rather than attempt to repair the problem. This is due to the fact that there are no viable repair alternatives for a failed tank. Additionally, leaking tanks can result in hazardous water damage to your personal belongings, and if the water isn’t cleaned up immediately, mold-breeding fungus can form. Here are some more reasons that may contribute to water heater problems: The drain valve, the cold water intake, the sacrificial anode rod, the dip tube, and the pressure relief valve are all included.

Contact a local specialist if you are experiencing problems with your water heater in the Sacramento region. They will assess if your water heater needs to be replaced or repaired.

How to select and replace thermostat on electric water heater

Replacement steps start here
Power if OFF Do not empty water out of heater	Turn power OFF Turn off 20 or 30 Amp circuit breaker to 240V water heater See basic water heater wiring diagram Or 20 Amp circuit breaker to 120V water heater Check label on side of water heater for appliance voltage Figure volts amps watts Wattage is stamped on end of element see example
	Never assume power is OFF/ Use non-contact voltage tester Use non-contact voltage tester on timer, on wire, on outlet to see if power is present. Press button on tester, if single beep then no power is present. If continuous beep then power is present. Never stand on bare ground, always stand on dry boards, do not hold or touch anything metal when working on timer or water heater that has power, tape tester leads to wood sticks, never touch wet water heater, or flooded water heater, or timer that had a short or fire without turning power OFF. Buy: Multimeters at Amazon Buy non-contact voltage tester at Amazon Electric testers at Amazon Shop Amazon – Industrial and scientific Shop Amazon – Industrial Electric Products
How to find age of water heater	How to use ordinary tester/ 120, 208, or 240V: Stand on dry boards Never touch wet water heater unless power is OFF Tape test Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.