Gas Hot Water Heater Thermostat Test

Water heater is not getting power.

Gas hot water heater thermostat test.

An electric hot water heater has two thermostats controlling two separate heating elements one in the upper half of the tank one in the lower half. I think we can all agree that waking up to take a shower in the middle of winter only to find out that all the water is cold is not the best thing to happen to anyone. Other than this the thermostat controls the current flowing from one thermostat to another thermostat or from the thermostat to the heater. Check your heater s power.

Not sure if this is your problem. Best seller rheem performance 40 gal. When it goes bad you don t have any hot water at all. Although most of the cases this scenario occurs for the power supply problems.

As soon as you complete this task you can fix it. This article deals with thermostats on electric water heaters. Turn the upper thermostat to it s highest temperature and if checking a dual element heater the lower thermostat to it s lowest setting. So at first make sure your power cord is okay.

Alternatively water is not heating at all. When an upper heating element or thermostat fails the entire water heater stops producing hot water. Usually when the upper thermostat goes bad you will have no hot water at all while a bad lower thermostat makes itself known when there is only a small amount of hot water before the tap water goes cold. The upper thermostat controls both the upper and lower element.

If you turn the hot water tap and cold water runs out then the upper thermostat is damaged. Step 2 use a flathead screwdriver to remove the thermostat cover plate. There will be a slot to place the blade of the screwdriver between the faceplate and the main body of the thermostat. 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.

Tall 6 year 36 000 btu natural gas tank water heater model xg40t06ec36u1 439 00 439 00. However you will need to know how to test a water heater thermostat to find the faulty unit. But if the water is hot that becomes later becomes cold then you have a damaged lower thermostat. If you do not have a volt ohm meter you need to know how to bypass a thermostat to test it.

Buy 3 or more 412 66. You know when your shower spits ice cubes instead of hot water that it s time to replace the thermostat for your water heater. Set your store to see local availability add to cart. The upper thermostat is the primary one that contains the high limit switch and the lower thermostat is used to detect the change in the temperature of the water.

How to test and replace a water heater thermostat. When a lower heating element or thermostat fails the top thermostat and element will continue to heat water in the upper half of the tank but you will notice the hot water quickly runs out or is only lukewarm.