Are You Aware of How to Test Your Water Heater Thermostat?

We all are very busy in our daily routines that we don’t even have time to fix the minute issues of the household. These issues linger on for quite some time. All we do is pick up the phone and call for the repairman to fix the issues that can easily be cured or maintained by us within no time.

How to Test Your Water Heater Thermostat

In addition, there are a lot of issues that we face during the normal operations of electronics and other appliances. These electronic items we used to operate at our homes have the tendency of breaking down after some time. in these electronic appliances come our water heaters. The normal breakdown for these water heaters is their thermostat.

How To Test Water Heater Thermostat?

Imagine a morning when it’s been snowing all night and your thermostat for the water heater stops working and there is no way a repairman can arrive at your doorstep. What would you do during this condition?

How To Test Water Heater Thermostat

Would it be a wise decision to wait for the snow to be cleared and the repairman to arrive, and till then you wait? Would it be a wise decision?

Here is the point where your knowledge and thanks to the use of technology come in handy. All you need is to see or read an article on how to repair and test your water heater thermostat.

Basic Layout Structure Of Your Water Heater:

As mentioned earlier in the article that whenever your water heater thermostat stops working what should you do in the first place. Here is the ultimate solution for you before you go and call the repairman.

All you need is to have the basic idea of how to test the water heater thermostat for a better understanding and its functionality. You need the right set of tools that proves to be testing pieces of equipment.

Basic Layout Structure Of Your Water Heater

The process for testing the thermostat is as under.

  1. Check for the power supply terminals.
  2. The terminals must be checked with the power is on and they are giving perfectly 240 volts reading.
  3. By rotating the lower limit possible, you will now see the lower thermostat, and after that pull it up so that you can see clearly where the issue persists.
  4. Now attach your multimeter to the terminals so that the heating element gives you perfect reading.
  5. If the reading shows 240 volts the power is sufficient.
  6. Now do the same procedure on the other remaining terminal of your thermostat.
  7. The reading here must also show the perfect 240 volts.
  8. Going to the lower thermostat by setting the temperature on the lowest settings.
  9. Now perform the same procedure by checking the volts for the perfect 240 volts.
  10. Do the same procedure on terminal 2 of the thermostat.
  11. With the same readings, your thermostat is working in perfect condition.

Replacing Your Water Heater Thermostat:

If the volts on the multimeter are showing other than 240 volts then this is time for you to have a concern.

Replacing Your Water Heater Thermostat

This is the point where your thermostat needs replacement. We have elaborated the replacement procedure for the water heater thermostat so that you can consult to the process while changing your own.

Turning off the Power:

For your safety, you need to turn off the power to the water heater before you lay your hands on it. It is for your safety.

Turning off the Power

All you need to do is disconnect the power supply with the screwdriver in your hand. Or you can cut the breaker directly by switching the water heater off.

Pull Out:

Now pull the thermostat out of the water heater. If you have a perfect memory then learn the settings for the wires that are attached to the thermostat, or if you won’t be able to remember then it is a better option to take a picture that allows you to see which wire is attached at which point.

Pull Out

This small exercise saves you a lot of trouble as well as keeps you out of trouble. Now unscrew the thermostat and pull it outwards.

Replacing the Faulty Thermostat:

Replacing the faulty thermostat with the new one is not a difficult task. Now that you have pulled off the thermostat from your electric water heater. Now all you have to do is repeat the procedure to install the thermostat back into the water heater in the same manner which you have earlier performed for pulling this thermostat out of the water heating system.

Replacing the Faulty Thermostat

Furthermore, if you find you are doing it all wrong then you can consult the picture that you have just taken over a matter of time. this picture will clear all the ambiguities in your mind relating to the installation of this faulty thermostat.


The last step for installing the thermostat on your electric water heater is to reconnect the thermostat that you have just replaced. Now joining the cables and to the circuit, you will be able to know the current status of the thermostat. After installing the thermostat and proper adjoining of wires. All you need to do is allow the heater to heat for more than a couple of hours at a high temperature.


In addition, to fixing now let the water heater run at high temperatures and as well as on low temperatures. This variation in the temperature allows you to have a clear idea of how this water heater and the newly installed thermostat works.

Turning on and Operational:

When all the functions are performed you need to perform the last function and that is to let your electric water heater run for more than a couple of hours for further testing.

Turning on and Operational

After you are satisfied. Congratulations you have saved yourself your hard-earned dollar bills.

Our Thoughts

We tried our best to bring you complete information regarding how to test the water heater thermostat for you. Here you will have insight on how to check and replace the faulty thermostat that is causing issues and concerns during the cold weather.

Water heaters have electricity-enabled components that work seamlessly for providing you the perfectly heated water for all your daily household requirements. There might be issues that arise from time to time. for all of these minute issues you don’t have to call the repairman to solve these issues as they cost you a lot to call the professional altogether.

You can also have a clear idea after reading the article how simple it is to check the thermostat, and even replacing them can be. All you need are the proper tools that would help you in trying to solve the matter for better and further basic knowledge on how to replace these thermostats when they prove themselves faulty.

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