Electric Water Heater Thermostat

To test you will need a multimeter and screwdriver.

Electric water heater thermostat.

Most electric hot water tanks have two elements and two thermostats. 1 water in the tank. Testing the thermostats on a dual element water heater. Testing is the only option if you want to determine whether or not one or both of them has failed.

For a water heater to work you need the following. Working of a thermostat in general there are three main components in an electric water heater. The thermostat turns the heating element on and off to maintain the water temperature. This diy repair guide explains how to replace the thermostat in an electric water heater.

The upper element heats the upper portion of. Many modern homes come with dual element water heaters. 2 electric power to your heater. You can pick up a good inexpensive multimeter online or any local hardware store.

I replaced the thermostat in my tiny titan water heater. The top element heats the water first and then the bottom element kicks in. Since most electric water heaters use both an upper and lower element the process outline below is for them. If the thermostats are okay you need to test the water heater elements.

3 thermostats that work. An electric water heater thermostat tells the heating elements when to heat up. I have an electric water heater that isn t working a. See testing electric water heater elements for more information.

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. As soon as i turn the unit on it shuts off after being on for just a. The elements do not heat up at the same time. Testing the upper thermostat.

If you have an electric water heater it uses one or two resistive elements to heat the water. Mainly the thermostat is used to adjust the temperature of water for different purposes. 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. 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.

Electric water heater thermostats are a fairly simple devices that can fail from time to time. A dual element water heater uses two heating elements controlled by two separate thermostats. 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.