Test Water Heater Element Thermostat

Test the water heater thermostat testing the water heater thermostat involves the checking of the heating element also.

Test water heater element thermostat. The upper thermostat controls both the upper and lower element. Common residential dual element water heaters are 240 volts. This is important especially as open and grounded heating elements result in inaccurate tests. You will also need to check the water heater thermostat with digital multimeter tools.

You can find this information on the data tag on the side of the water heater. To look at the faults in the upper thermostat you need to turn off the lower one. Turn the water heater circuit breaker off inside the main service panel. Both thermostats control two different heating elements for the heater to function.

This article deals with thermostats on electric water heaters. How to test an electric hot water heater thermostat step 1. If you want to test a thermostat on an electric water heater you will also need to check the heating element. Pull away any insulation that is.

Start by checking the thermostat terminals for the supply of power. If the data tag is missing you can identify single element vs dual element by the number of access panels on the water heater. Before you proceed further with the process of testing the heater thermostat take a screwdriver and the multimeter. When it goes bad you don t have any hot water at all.

Testing water heater thermostats is important in locating water heater problems. Check the power supply of the thermostat. If the water is cold the multimeter will point near zero. The access panels are on the side of.

Connect the multimeter pin ends on point 1 2 as shown in the picture below. You can find the voltage written on the end of the heating element. Remove the upper and the lower access panels with a phillips screwdriver. In this case also check the current at the high limit switch.

If the opposite thing happens that means your thermostat has defected. Now sometimes you use the hot water tap to only discover cold water coming out. If the water is hot enough at appointed temperature the meter won t show reading. To look for faults you will need to use a screwdriver.