How To Bypass Hot Water Heater Timer

Question regarding timers for electric water heaters

Aside from the topic of timers- I live alone and have a 40-gallon electric water heater. When I wash my clothing in cold water, I save money by turning down the water heater’s temperature to the lowest or second-lowest level. I can only take two showers a day at the most. I run out of hot water on a daily basis. Because of the lukewarm water, I’m getting out of the shower after one wonderful long shower. Plus, my electric bill is still high, 120-140 dollars a month, even with all of my lights turned off and the only other electric appliance I have is a micro fridge (no full-size refrigerator).

I used to live in a townhouse with a lot of space.

Intermatic Water Heater Timer Troubleshooting [9 Easy Fixes]

Intermatic water heater timers are unquestionably excellent, as you are well aware. They save you a great deal of time and effort. However, there are several difficulties that might prevent them from functioning normally. You do not, on the other hand, need to be concerned about water heater timer issues. We’ll take care of it. Throughout this post, we’ll go over nine critical Intermatic water heater timer troubleshooting steps. By the end of the course, you will have gained the confidence to deal with any and all Intermatic water heater timer problems.

9 Common Intermatic Water Heater Timer Troubleshooting

Follow the Intermatic water heater timer installation instructions and your water heater will no longer be a source of frustration. However, there can be some issues with the timer itself, which can be frustrating. You definitely want to see these problems resolved, don’t you? Take a look at the following conversation for a fast overview. You can discover the ideal solution to your Internmatic water heater timer problem right here.

1. The Pump Is Not Switching On Or Off

Even if the clock on the timer is exactly accurate, it is possible that the pump will not turn on. The cause of this problem is that the Intermatic timer trippers are not functioning properly. The timer transmits signals to the tripper, which then sends signals to your pump. As a result, if the tippers are malfunctioning, the pump may be unable to turn on or off. In this circumstance, the best remedy is to replace the trippers with new ones. This is how you may go about it:

  • Remove the tripper from the timer by unscrewing it. Remove the tripper from its current location
  • Remove the blemish
  • Place a new tripper in the most advantageous location
  • Screw it down firmly in its position

2. The Heater Is Switching Off At The Wrong Time

Your timer is solely useful in that it shuts down your pump at the specified time each day. However, it is possible that your heater will shut off at an inconvenient moment owing to particular difficulties such as an erroneous tripper position or an inaccurate clock setting. Solution: In the event that your water heater is shutting down at an inconvenient time, you might try the following:

  • Check to see that the time is set correctly
  • Check to see that the clock is set to the correct time
  • Inspect the tripper to ensure that it is appropriately positioned.

3. Incorrect Clock-Time

The water heater timer regulates the operation of your heater by switching it on and off according to the time you choose.

In contrast, if the device clock time is not precise, the timer will fail to turn on and off the system at the appropriate times. Solution: Intermatic water heater timers are quite simple to use, and setting the clock time is simple as well. This is how you may go about it:

  • Press and hold the CLOCK button until the options appear on the screen. Hold down the DAY button until the current date appears on the display
  • Press and hold down the HOUR button until the current hour is shown on the screen. Hold down the MIN button until the current minute is displayed on the screen.

After that, the clock time on your Intermatic water heater will be precisely calibrated.

4. Loose Middle Time Pointer / Time Points Wobbling

With time, the pointer on your Intermatic timer will become misaligned. A shaky middle-time pointer might cause the tripper to activate at inconvenient times. Solution: Tightening the middle-time pointer is a straightforward process. Here’s what you should do:

  • To begin, use a flathead screwdriver and loosen the pointer only a little by rotating the screwdriver anti-clockwise. Now, using the screwdriver in the clockwise direction, tighten up that pointer.

5. Timer Clock Is Not Turning

There are a variety of reasons why the timer clock on your Intermatic water heater timer may fail to spin. The timer alone can be a source of significant problems. It is also possible that the power supply for the heater timer is the source of the problem. Solution: If your timer is malfunctioning, you may repair it using the following procedure:

  • Examine the time displayed on the timer clock. Moment settings that are incorrect might cause your timer to not switch on at the appropriate time. Take a flathead screwdriver and tighten the central time pointer until it is snug. Pull the yellow clock toward you and move it about a little before putting it back where you found it originally
  • Check to see if the gears are in motion carefully. It’s possible that there are missing teeth or that debris has become blocked. Light pressure should be used to change the gear or clean the component.

Even if the timer is working flawlessly, the clock may still not be able to spin. It can be caused by power supply concerns, as previously described. What you should do in this situation is as follows:

  • Turn off the heater’s power source by pressing the power switch. Then, after a few minutes, switch it back on again. Check to discover whether the circuit breaker has tripped and if so, what happened. If this is the case, turn the switch “ON.” A voltmeter should be used to check the voltage of the timer input. If the voltage reading is more than or equal to 110V and 220V AC, the power supply is defective. Make an appointment with your electrician to get this problem resolved.

6. Timer Fails To Manually Turn The Heater On

It is possible for your water heater timer to fail to turn on the heater. This frequently occurs when you attempt to use your water heater after a prolonged period of inactivity. The cause of your water heater timer’s failure to turn on the unit manually is a jammed switch. Solution: Here’s what you can do to combat the problem:

  • Locate the on/off switch on the wall. If there is something heavy trapped there, use a screwdriver to remove it. Now, using a brush, remove any extra dirt from the surface. lubricant should be used in the switch

Now attempt to turn on the light switch. It should function flawlessly.

7. Mechanical Timer Switch Not Working

This timer switch troubleshooting procedure is a little risky. The fact that the mechanical switch is not functioning indicates that the contacts of the timer switch have become worn out. This faulty contact allows electricity to seep out. The connections in the timer must be replaced, which is the only solution. It might be dangerous to attempt it on your own. Instead, make a call to your local electrician.

8. Little Gray Box Timer Not Working

The Intermatic water heater timer can be controlled with ease thanks to the small grey box. Nonetheless, if this component fails to function effectively, you may be forced to deal with several complications. Fortunately, there is a solution to correct the situation. Solution: The following are the most effective methods of dealing with a defective tiny grey box of timer:

  • Make sure the electricity is getting to the box
  • Otherwise, call for help. Then look inside the package to make sure nothing is missing. It is possible that the wiring is defective. Track down any broken or damaged wires and swap them out with a fresh set of wires

This will restore the comforts of the small grey box to your life.

9. Intermatic Timer Turns Off But Not On

If your Intermatic timer automatically goes off but does not appear to switch back on, the trippers may be the source of the problem. Keep an eye out for instances where the timer point crosses the ON point without having any impact. This is a clear indication that the malfunctioning tripper is the source of the problem. Solution: What you can do in this scenario is as follows:

  • To disassemble the ON switch tripper, locate it and unscrew it. Purchase a similar item and screw it firmly into place in its original location.
See also:  How To Adjust Hot Water Baseboard Heater

And that was pretty much the end of it. Knowing how to use these nine troubleshooting techniques will assist you in dealing with any problems you may have with your Intermatic water heater timer.

How To Bypass Hot Water Heater Timer To Avoid Issues

Bypassing a hot water heater timer is essentially the same as turning off or disabling the timer. Due to the fact that the water heater timer is an external component, removing it completely completes the bypassing process. You should not, however, make this a regular part of your routine. Consider bypassing only if you are unable to resolve the problem with the water heater timer.

It is possible to keep the water heater timer unconnected and call a professional to assist you with the problem. Following are the instructions for disabling or bypassing an Intermatic hot water heater timer:

  • First and first, you must switch off the entire system. This will help to secure your security. After that, open up the timer panel and look for the wires
  • Once all of the wire connections are exposed to you, you may begin to disconnect them one at a time.

If you turn on your water right now, it should start running immediately and have no effect on the timer. You can view a video to make the bypass procedure more straightforward.


Replacement of a water heater timer might cost anywhere between $100 and $300 on average.

How long does a water heater timer last?

A water heater has a lifespan of around 20 years.

How do you program a timer switch?

By pushing the PRG switch, you may quickly and easily program a timer switch. It will display all of the programming options that are currently accessible.

How do I reset my timer switch?

By clicking the Reset button, you may quickly and conveniently reset your timer switch.

How much does the heater timer tripper cost?

Intermatic water heater timer trippers are reasonably priced, with a good pair costing approximately $25.

Final Words:

Knowing how to troubleshoot an Intermatic water heater timer will save you a lot of time and aggravation in the long run. If you have followed our instructions to the letter, you will have a fully functional water heater timer for many years to come. Any questions or concerns can be expressed in the comments section below. Thanks for reading!

How can I temporarily bypass a water heater?

It’s probably best if you just turn off the breaker for the water heater and keep it turned off, if you haven’t already done that. My assumption is that there is a leak in the water heater and that you have shut off the water at the main. Someone had the foresight to install a shutdown valve on the hot water heater supply line, so all you have to do is close the valve and your water will be turned back on. In the event that there isn’t one, you should consider installing one when you replace the water heater unit.

(If you aren’t sure which is the supply, cap them both at the same time.) This might be a simple task or a difficult one.

Hot Water Heater Timer

How to Install a Hot Water Heater Timer for Electrical Hot Water Heaters is the subject of this Instructable. This piece of equipment may save you a significant amount of money and energy, allowing you to reduce your carbon imprint on our world. Since installing it, we have been able to reduce the amount of time we use our hot water heater by 16 hours each day. That equates to a 66 percent energy savings on a device that works practically continuously and consumes a lot of energy. The timer cost approximately $40, and then I had to spend another $15 on conduit and couplers, and then I had to run a few feet of wiring.

Using cost comparisons, we’ll determine how long it will take for this timer to pay for itself.

Step 1: Disconnections

Your next step will be to complete all of the disconnections, which will include: 1. Locate your house’s power box and turn off the breaker called ‘Hot Water Heater’; ours was labeled H/W Heater.

2. Locate your hot water heater and turn off the breaker labeled ‘Hot Water Heater’. 2. Remove the plate from the hot water heater and then the wire nuts from the hot water heater. 3. If you have conduit going to the wall, you must remove both the plate and the conduit from the wall.

Step 2: Installing the Conduit and Timer

The timer and conduit will be installed next, which will take some time. 1st, locate and screw into an existing stud until the screw is approximately 1/8″ short of being flush with the wall. The box is at an angle because I did not permanently connect it to the wall, which is why it is at an angle; I will attach it later when everything has been measured and dry fitted together. 2. Connect the conduit to the wall cover plate that was originally installed. Because the wall mount was right above the box, I chose to attach the conduit to the side of the box; however, the placement of the conduit is entirely up to you depending on the location of the box.

Attach the conduit to the box and feed the wire through it, then trim the ends of the conduit.

Step 3: Wiring the Timer

In this phase, you will be connecting the wires to the Timer device. (Continue to follow the instructions in case they have been modified) 1. Pull the wires through the conduit and strip the wires back a half-inch. 2. 2. The wires from the hot water heater will be connected to the right terminals, while the wires from the home will be connected to the left terminals. 3. From left to right, Terminal1 is black from the house, Terminal2 is black from W/H, Terminal3 is white from the house, and Terminal4 is white from W/H.

Step 4: Finish Wiring and Close Up

The final stage in the installation process will be to complete all of the processes. Install the wire nuts back where they were when you first started. 2. Connect the ground wire to the ground screw using a grounding screwdriver. 3. Attach the cover plate to the right and left sides of the W/H.

Step 5: Setting the Timer

At this stage, you will set a timer and complete the task. 1. Place the transparent plastic cover over the wire and secure it in place. The time is adjusted by pulling out on the dial and rotating it to the appropriate time of day. DO NOT make any adjustments to the arm that is pointing down 90 degrees. Once you are completed, just screw on the corresponding adjusters at the appropriate times to complete your project.

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bypass hot water tank
Author:chase136 (NY)I currently have an oil fired burner which supplies hot water to an electric hot water storage tank. Presently, I have low demand for hot water (morning showers) and do not need 50 gals of water preheated. My burner fires up every hour to maintain water temp in the tank, and my oil consumption is unecessarily high as a result.How do I go about bypassing the storage tank until I need it for high demand situations? Is this an acceptable practice?
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Re: bypass hot water tank
Author:Shoemaker2 (MA)You must have valves in the piping that allows the hot water to come straight from the coil and through a tempering valve, to cool the water to a safe temp.
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Re: bypass hot water tank
Author:packy (MA)the burner fires every hour to maintain the temperature in the boiler, not the water in the tank.the electric elements maintain the water temperature in the tank.
Post Reply
Re: bypass hot water tank
Author:North Carolina Plumber (NC)Packy is correct. Even if you bypass the electric heater the bolier will still fire every hour.I’d just shut the power off to the bolier and use the electric heater.
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Re: bypass hot water tank
Author:Wheelchair (IL)My guess would be to invest in a timer that would allow hot water production during peak hours and then then shut down during non-peak hours.To achieve this might require simple engineering on your part and testing.Best Wishes
Post Reply
Re: bypass hot water tank
Author:hj (AZ)If the tank is losing that much heat, and the boiler is firing to maintain the tank’s temperature, then you have abigger problem than you think. Once the tank is heated, it should hold the temperature for at least a day unless you are using hot water from the tank. If the heater is large enough to provide “continuous hot water”, then all you have to do is connect the two storage tank pipes together, either by disconnecting them from the tank and hooking them together, or using “3 way valves” to provide the bypass.Edited 1 times.
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Re: bypass hot water tank
Author:packy (MA)the boiler doesn’t know what the temperature of the water in the electric heater is.the aquastat on the boiler calls the boiler on at whatever the low limit is set at. it shuts it off when the high temperature is reached.this goes on 24/7 ad infinitum or until they run out of oil.
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Re: bypass hot water tank
Author:chase136 (NY)Thanks for the great feedback. Perhaps the storage tank needs a blanket to maintain the heat.The aquastat on the boiler is set at 120.When it fires, its because the water in the boiler is cooling?I think I’mmissing the concept of the boiler not sensing water temp in the storage tank. Should I lower the temp settings in the tank also?
Post Reply
Re: bypass hot water tank
Author:packy (MA)if you really have an electric water heater that is being fed from a tankless coil in the boiler, then the boiler has no way of know what the temperature of the water in the tank is.if you have a storage tank with it’s own aquastat that is wired to a control at or near the boiler, that is a horse of a different color.if you are confused as to which system you have, take a couple of pictures and post them here.
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Re: bypass hot water tank
Author:hj (AZ)We have absolutely NO IDEA how the boiler is controlled. It could have a pump controlled by an aquastat to keep the tank full of hot water, and the electrical is just a backup system.A boilerwhich is just maintaining temperature should also NOT cycle every hour, unless he has resorted to hyperbole.
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Re: bypass hot water tank
Author:hj (AZ)Is the storage tank a conventional electric water heater with a jacket and insulation, if so, a blanket will do very little to improve the situation.
Post Reply
Re: bypass hot water tank
Author:louvain (CA)These is an helpful topic and I agree that boiler is firing to maintain the tank’s temperature.
Post Reply
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How Can I Bypass a Hot Water Heater Without Removing It?

Image courtesy of Comstock/Getty Images/Comstock/Getty Images Winterizing your cottage or recreational vehicle is a time-consuming operation. If you’re not frightened of a little bit of plumbing work, you may forego filling your water heater with antifreeze before the cold weather settles in for the season. Rather of removing your water heater, all you need to do is install a set of bypass valves in the appropriate locations.

Before You Start

Make sure the size and kind of pipes connected to your water heater are correct before you proceed to the home improvement center. Make a list of all of the fittings and tools that you will need to perform the project successfully. Plastic fittings should not be used within 12 inches of a water heater, according to the majority of water heater manufacturers.

Bypass Design

Bypasses are often constructed by connecting a pipe between the hot and cold water pipes that are linked to the heater.

Using this pipe, water from the cold-water feed may be diverted straight to the hot-water line, bypassing the water heater entirely. When it comes to directing the flow of water, two main types of valve sets are often utilized.

Three-way Valve Setup

RV three-way valve bypass kits are commercially available for use in recreational vehicles. A three-way valve is fitted on both the hot and cold water lines to ensure that the water is not wasted. Using both of the valves in this configuration to control the flow of water via the bypass, the water entering the heater from either line is prohibited. The typical operational mode of both valves sends water through the heater and totally shuts down water flow through the bypass line while both are in this mode.

Three-valve Bypass

If you are unable to locate three-way valves, three conventional on/off valves can be used to accomplish the same task. Install one valve on the cold water line and another valve on the hot water line to complete the installation. Both valves should be installed in the line between the heater and the bypass line, as shown in the diagram. The third valve should be installed approximately halfway up the bypass line. To bypass the heater, close the valves on the hot and cold plumbing lines and open the valve on the bypass line.

Heater Protection

Turn off the water heater first, then turn off the main water supply valve. In the event that you decide to drain the heater’s tank for the winter, be sure to switch on the water supply and run the plumbing for an extended period of time to ensure that all air has been removed from the tank before re-connecting the electricity or re-lighting the heater.

EZ 101 + EZ 202 Limit Switch Bypass

11th of February, 2020 For example, perhaps in your driveway you have a flexible fuel or gasoline-electric hybrid car. Or perhaps you have a compost pile in your backyard. You’ve insulated your home, added thermal-pane windows, and you may even have a more energy-efficient furnace than you used to have. Are you still heating a large tank of hot water around the clock, despite the fact that you are warm and comfy and “feeling the green”? Did you realize that if you use a gas tank type heater, you are not only squandering gas by heating hot water on a continuous basis, but you are also sucking heat from your home through the draft style exhaust pipe as well?

“Can you tell me what a gas-fired tankless water heater is?

How to override T101 with switch

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Run Your Hot Water Recirculation Pump Only When It’s Needed

Water heaters are essential in our house since we rely on them for so many everyday chores. Cleaning, bathing, and cooking would be nearly impossible without one. In order to meet this demand, our water heaters operate 24 hours a day, seven days a week, keeping the temperature of the water inside a steel tank constant.

Water Heaters Haven’t Aged Much.

Since its debut to the home market in the early 1900s, water heaters and the technology that surrounds them has stayed remarkably consistent in their design. The earliest household water heater looked quite similar to the ones we have today, with a cylindrical storage tank, gas-powered burners, and a footprint that can occupy up to 18 square feet on a flat surface. Since almost a decade ago, tankless water heaters have been threatening the dominance of tank-type water heaters. Tankless water heaters are more energy efficient, waste significantly less water and energy, and take up significantly less valuable interior space in the home.

Although a tankless water heater may be technologically sophisticated, it still suffers from the same problem of having cold standing water in the supply line that must be flushed before it can be used.

How Do I Get Instant Hot Water in My Home?

Hotels, tall skyscrapers, and other commercial buildings have been utilising the concept of a recirculating pump system for the quick supply of hot water for many years now. For any water heating system, the most difficult obstacle to overcome continues to be the delivery of hot water immediately after a tap is turned on. When using a normal plumbing system, the water supply lines physically terminate at the fixture that is the furthest distant from the meter (cold water) or at the water heater (hot water) (for hot water).

The hot water line’s terminal end is connected to a pump that returns any unused hot water to the tank rather than to the faucet.

Run Your Hot Water Recirculation Pump Only When It’s Needed

In order to properly operate a hot water recirculation system, it is highly suggested that you install an electronic timer. The timer enables the homeowner to choose specified hours of the day during which the pump will be active. When the recirculation system is only running for a couple of hours per day during peak demand, it can result in a considerable savings in energy and water expenditures. Even if your hot water recirculation pump did not come with a timer, you may install an aftermarket timer on the pump’s power outlet to save money on energy costs.

What Are the Pros of Hot Water Recirculation Systems?

Assume that you will never again have to wait several minutes for your water to become hot enough to bathe or properly handwash your hands. Now, there’s no need to fantasize. Hot water recirculation systems provide the convenience of rapid hot water at every faucet and plumbing fixture in your house.

2: Save Money, Save Water

Every year, the average residence wastes up to ten thousand gallons of water while waiting for the water to heat up to a comfortable temperature. When broken down quantitatively, a showerhead delivers hot water at a rate of 2.5 gallons per minute and can take up to 5 minutes to reach the desired temperature. Every shower taken in the house leads in a waste of at least 12.5 gallons of water. That may seem like a small amount of water, but if your family takes four showers every day, that equates to a waste of 50 gallons per day, or 18,250 gallons annually.

At the same time, the financial benefits of decreased energy and water use are realized.

What Are the Cons of Hot Water Recirculation Systems?

Turning on the cold water tap for a drink results in warm water, which is something you wouldn’t expect to see. I’m not sure why, but warm water tastes strange to me, and there’s nothing refreshing about it. If you turn on the cold water and let it run for a few seconds, it will flush any warm water out of the cold supply line. However, this might be a symptom of a problem with the bypass valve in your recirculation pump that has to be rectified.

2: Price

While the cost of installing a hot water recirculation pump isn’t nearly as expensive as purchasing a new water heater, it is still a significant investment. Recirculation pumps are available for purchase for less than $300 and are not difficult to install for the do-it-yourself homeowner.

The cost of hiring a certified plumbing firm to provide and install a hot water circulation pump is often in the $750 – $1,000 range, which includes a warranty against faulty components or poor workmanship.

3: Maintenance

The sensor valve on hot water recirculation pumps must be replaced on a regular basis, but other than that, they require very no maintenance. This valve is most typically found at the far end of the plumbing system, and if yours is positioned there, it’s a simple remedy if the problem persists. If the valve is located within the pump itself, it is a considerably more difficult job that frequently results in the need to replace the complete pump assembly. The absence of fast hot water is usually the first clue that this valve is malfunctioning, since the sensor fails to engage the pump when the water temperature dips below the set value when the sensor detects this.

Is it ok to leave bypass open?

In addition, there is the option of not leaving the water heater turned on all of the time. During the day, we turn it on 20-30 minutes before showering or doing dishes and turn it off for the rest of the day. If you are washing your hands more frequently during these periods, I believe that turning the heater on for 10-20 minutes every few hours would be sufficient to keep it warm. cavie expressed herself as follows: Do you have one at home that you can switch on and off? Yes, I have a timer set for it, so it turns on at 4 a.m.

Kernow Dan expressed himself as follows: Thank you for your tip, skydivemark; it would also reduce power consumption.

Although our bypass is similar to yours in that the water still passes through the water heater, it also collects water from the cold water supply if the valve is left open, I believe our bypass is distinct.

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