Electric Water Heater Thermostat

An electric water heater thermostat tells the heating elements when to heat up.

Electric water heater thermostat.

See testing electric water heater elements for more information. Electric water heater thermostats are a fairly simple devices that can fail from time to time. One is the heating element second is the power switch to avoid overheating problem and the last one is the thermostat. As soon as i turn the unit on it shuts off after being on for just a.

If the thermostats are okay you need to test the water heater elements. I have an electric water heater that isn t working a. 4 elements that work. 3 thermostats that work.

This diy repair guide explains how to replace the thermostat in an electric water heater. The upper element heats the upper portion of. If the thermostat stops working the element either won t come on at all and the water is cold or the element stays on too long and the water is scalding. You can pick up a good inexpensive multimeter online or any local hardware store.

Each element is controlled by a hot water heater thermostat that turns it on when the water temperature falls below its cut in setting and turns it off when the water temperature exceeds its cut out setting. The top element heats the water first and then the bottom element kicks in. Testing the thermostats on a dual element water heater. I replaced the thermostat in my tiny titan water heater.

If you have an electric water heater it uses one or two resistive elements to heat the water. Reliance water heater 100109136 electric water heater plumber repair pack includes 1 each upper thermostat 4 6 out of 5 stars 153 36 10 36. The thermostat turns the heating element on and off to maintain the water temperature. Many modern homes come with dual element water heaters.

Working of a thermostat in general there are three main components in an electric water heater. 1 water in the tank. 2 electric power to your heater. Most electric hot water tanks have two elements and two thermostats.

Since most electric water heaters use both an upper and lower element the process outline below is for them. Mainly the thermostat is used to adjust the temperature of water for different purposes. Testing the upper thermostat. Testing is the only option if you want to determine whether or not one or both of them has failed.

The elements do not heat up at the same time. A dual element water heater uses two heating elements controlled by two separate thermostats. To test you will need a multimeter and screwdriver.