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How To Test Hot Water Heater Elements And Thermostats. If you want to test a thermostat on an electric water heater, you will also need to check the heating element. Now that the tools are readily available, it’s time to test the continuity of the thermostats.

How to test water heater element from waterheatertimer.org

A water heater thermostat has a series of wires and screws connected to it. Choose which heater element you’d like to test first. Remove 1 wire (it doesn’t matter which one) by finding its loose end and unraveling it from around the metal element.

Test The Thermostats With The Multimeter.

Detach the wiring access with a screwdriver at the top of the heater. These are panels attached with screws on the tank of the water heater. If you want to test a thermostat on an electric water heater, you will also need to check the heating element.

Alternatively, Water Is Not Heating At All.

Test the water heater’s water temperature settings. Remove the water heater’s access cover panel and insulation from the upper water heater element. Small amount of hot water;

With The Cover Plate Out Of The Way, You Can Now See The Thermostat, Reset Button And Heating Element.

When checking the thermostat in a single element water heater or the upper thermostat in a dual element water heater the process is the same. The thermostat is the one at the top with a series of screws and wires connected to it. How to check electric water heater elements & thermostats with power on & off.

Unlike A Heating Element, A Thermostat Is Really Easy To Replace Since You Do Not Even Need To Drain The Tank.

Most water heaters will have a plastic cover over the thermostat. Touch one probe of the multimeter to each terminal on the lower thermostat. Whether you have an electric or gas water heater, it is mandatory to cut off the power supply in order to ensure safety.

Leave The Upper Thermostat In The Lowest Setting And Test The Lower Thermostat.

Now that the tools are readily available, it’s time to test the continuity of the thermostats. Take 1 of the wires off of a water heater element. The tool usually has a dial for this;

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