Electric Water Heater Thermostat

I replaced the thermostat in my tiny titan water heater.

Electric water heater thermostat.

Testing the upper thermostat. The top element heats the water first and then the bottom element kicks in. You can pick up a good inexpensive multimeter online or any local hardware store. Testing the thermostats on a dual element water heater.

Since most electric water heaters use both an upper and lower element the process outline below is for them. I have an electric water heater that isn t working a. The thermostat turns the heating element on and off to maintain the water temperature. 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.

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. For a water heater to work you need the following. Most electric hot water tanks have two elements and two thermostats. One is the heating element second is the power switch to avoid overheating problem and the last one is the thermostat.

This diy repair guide explains how to replace the thermostat in an electric water heater. 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. The upper element heats the upper portion of. To test you will need a multimeter and screwdriver.

The elements do not heat up at the same time. An electric water heater thermostat tells the heating elements when to heat up. Electric water heater thermostats are a fairly simple devices that can fail from time to time. 4 elements that work.

Many modern homes come with dual element water heaters. 2 electric power to your heater. As soon as i turn the unit on it shuts off after being on for just a. Working of a thermostat in general there are three main components in an electric water heater.

3 thermostats that work. 1 water in the tank. See testing electric water heater elements for more information. A dual element water heater uses two heating elements controlled by two separate thermostats.

Testing is the only option if you want to determine whether or not one or both of them has failed. If you have an electric water heater it uses one or two resistive elements to heat the water. 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.