How To Test Rheem Water Heater Thermostat. If the reading is more than zero the thermostat will need to be replaced. If you want, you can drain the tank (this will help avoid any leaks).
Check the thermostat with a multimeter. The last step of how to check thermostat on water heater is to check the thermostat with a multimeter. Now let us get started with the following steps on how to test a water heater with multimeter.
To Confirm The Problem, Remove The Thermostat And The Heating Element And Bring Them To A Plumbing Supply House Or Appliance Repair Shop For Testing.
A thermostat is a mechanical device that controls the flow of electrical current to various parts of the water heater. If it is, you will have a reading of 240v on terminals 1 and 3. A good thermostat should have a reading of 0 ohms.
How To Test A Water Heater Thermostat.
The last step of how to check thermostat on water heater is to check the thermostat with a multimeter. If the thermostat has a switch to toggle from fan to auto, make. Take a photo of the wires and use a screwdriver to disconnect them.
Adjust The Needle To “Zero” And Pinch The Probes Together To Standardize The Meter.
Confirm power is off to the water heater. Test the thermostat using an analog or digital multimeter. Open the water heater’s access panel.
Look At Your Water Heater And Locate A Rectangular Metal Cover On The Side.
If you want, you can drain the tank (this will help avoid any leaks). To test a water heater thermostat, start by turning off power at the breaker then remove cover plates and insulation. Leave the upper thermostat in the lowest setting and test the lower thermostat.
You Must Access The Water Heater’s Internal Components To Test A Water Heater Thermostat And Heating Elements.
Check the thermostat with a multimeter. Check if screws are fastening the cover and remove them using the correct screwdriver. Compare the reading results and adjust the thermostat settings.