Water heater thermostat is actually a very simple device. they
operates off bi metal switch located on the back of the thermostat.
When the disk reaches a certain temperature bi medals will come in or out of what might happen and connect or disconnect power to the heating element. This bi-metal disc is what you hear click when the temperature is turned up or down.
Testing the thermostat
How to check the thermostat to the electrical flow. Thermostat can be tested with power on or off. You can check the voltage on the element to see if the thermostat works if you are comfortable working with power.
replacing the thermostat
Replacing the thermostat is easy with step by step guide.
No special tools are required.
Water heater reset button
What to do if the reset button pops out. How to reset your water heater limit switch.
Water heater temperature
How to adjust the temperature on the thermostat. What temperature should
Your water heater is located.
Using a multimeter
How to read a multimeter to check continuity and voltage with an analog multimeter.
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