Electric Water Heater Thermostat

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.

Electric water heater thermostat.

Testing the upper thermostat. Testing the thermostats on a dual element water heater. The elements do not heat up at the same time. An electric water heater thermostat tells the heating elements when to heat up.

Working of a thermostat in general there are three main components in an electric water heater. 3 thermostats that work. If the thermostats are okay you need to test the water heater elements. The thermostat turns the heating element on and off to maintain the water temperature.

The upper element heats the upper portion of. 2 electric power to your heater. I have an electric water heater that isn t working a. A dual element water heater uses two heating elements controlled by two separate thermostats.

Many modern homes come with dual element water heaters. This diy repair guide explains how to replace the thermostat in an electric water heater. Testing is the only option if you want to determine whether or not one or both of them has failed. 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.

4 elements that work. As soon as i turn the unit on it shuts off after being on for just a. One is the heating element second is the power switch to avoid overheating problem and the last one is the thermostat. The top element heats the water first and then the bottom element kicks in.

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. For a water heater to work you need the following. Most electric hot water tanks have two elements and two thermostats. 1 water in the tank.

To test you will need a multimeter and screwdriver. If you have an electric water heater it uses one or two resistive elements to heat the water. I replaced the thermostat in my tiny titan water heater. Since most electric water heaters use both an upper and lower element the process outline below is for them.

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. See testing electric water heater elements for more information. You can pick up a good inexpensive multimeter online or any local hardware store.