Electric water heater thermostats are a fairly simple devices that can fail from time to time.
Water heater thermostat electricity.
How to set the upper and lower thermostats on dual element water heaters.
Check your heater s power connecting point.
Electric water heaters have 2 thermostats an upper thermostat and a lower thermostat.
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So at first make sure your power cord is okay.
Although most of the cases this scenario occurs for the power supply problems.
You may insert the power pluck and hold a tester at the heater s connecting point to check if the power is available.
Turn off the power to the water heater.
Remove the access cover panels located on the side of the tank.
Set the lower thermostat to its lowest setting.
Repeat the test with the other screw.
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If it isn t the upper thermostat is not sending power to the lower one.
How to test an electric hot water heater thermostat step 1.
Replace the upper thermostat.
How to test water heater thermostat this case might happen for the defected thermostat.
Testing is the only option if you want to determine whether or not one or both of them has failed.
The exact location is different with each manufacturer or model but it.
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Turn off the circuit breaker to the water heater.
The access panels are on the side of.
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The reading should be between 110 and 120 volts.
Touch one meter lead to the top screw and the other lead to the metal body of the water heater.
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Use a screwdriver to set the upper thermostat to its highest setting.
Turn the water heater circuit breaker off inside the main service panel.
Pull away any insulation that is.
If the thermostats are okay you need to test the water heater elements.
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Remove the access panels to the elements along with the insulation underneath.
The upper thermostat controls the upper heating element and the lower thermostat controls the lower heating element.
Remove the upper and the lower access panels with a phillips screwdriver.