Gas Hot Water Heater Thermostat Test

Turn the upper thermostat to it s highest temperature and if checking a dual element heater the lower thermostat to it s lowest setting.

Gas hot water heater thermostat test.

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. Step 1 turn the circuit breaker off to the hvac system. As soon as you complete this task you can fix it. There will be a slot to place the blade of the screwdriver between the faceplate and the main body of the thermostat.

Check your heater s power. Tall 6 year 36 000 btu natural gas tank water heater model xg40t06ec36u1 439 00 439 00. When it goes bad you don t have any hot water at all. 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.

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. Water heater is not getting power. The upper thermostat controls both the upper and lower element. How to test and replace a water heater thermostat.

Set your store to see local availability add to cart. You know when your shower spits ice cubes instead of hot water that it s time to replace the thermostat for your water heater. Not sure if this is your problem. 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.

But if the water is hot that becomes later becomes cold then you have a damaged lower thermostat. Best seller rheem performance 40 gal. Buy 3 or more 412 66. Other than this the thermostat controls the current flowing from one thermostat to another thermostat or from the thermostat to the heater.

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. This article deals with thermostats on electric water heaters. Step 2 use a flathead screwdriver to remove the thermostat cover plate. Alternatively water is not heating at all.

For thermostats on gas hot water heaters you will need to see the article gas water heater thermostats for more information. How to test water heater thermostat this case might happen for the defected thermostat. However you will need to know how to test a water heater thermostat to find the faulty unit. When an upper heating element or thermostat fails the entire water heater stops producing hot water.

If you turn the hot water tap and cold water runs out then the upper thermostat is damaged. 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.