Check Water Heater Thermostat

And that s when my tutorial on how to test water heater thermostat will need your attention.

Check water heater thermostat. Check your heater s power connecting point. If the hot water heater is not working one of the thermostats may be bad. Although most of the cases this scenario occurs for the power supply problems. You will also need to check the water heater thermostat with digital multimeter tools.

The upper thermostat is the primary one that contains the high limit switch and the lower thermostat is used to detect the change in the temperature of the water. See testing electric water heater elements for more information. 2 the tools you ll need. How to test and replace a water heater thermostat.

If you want to test a thermostat on an electric water heater you will also need to check the heating element. Electric water heaters have one or two elements and each is controlled by a thermostat. 1 how to test water heater thermostat using simple tools available at home. Other than this the thermostat controls the current flowing from one thermostat to another thermostat or from the thermostat to the heater.

I think we can all agree that waking up to take a shower in the middle of winter only to find out that all the water is cold is not the best thing to happen to anyone. This is important especially as open and grounded heating elements result in inaccurate tests. An electric hot water heater has two thermostats controlling two separate heating elements one in the upper half of the tank one in the lower half. So at first make sure your power cord is okay.

You know when your shower spits ice cubes instead of hot water that it s time to replace the thermostat for your water heater. 4 detach the covers. To look for faults you will need to use a screwdriver. 3 start safe by turning the power off.

You can test them with the power off using an ohmmeter to measure resistance or with the power on using a voltmeter to measure voltage. Usually when the upper thermostat goes bad you will have no hot water at all while a bad lower thermostat makes itself known when there is only a small amount of hot water before the tap water goes cold. How to test water heater thermostat this case might happen for the defected thermostat.