Thermostat Hot Water Heater Electric

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

Thermostat hot water heater electric.

Electric water heaters are high voltage 240 volt appliances that are dangerous to work with when the power is on. Before checking any electrical parts of a water heater shut off the power to the heater s circuit by turning off the appropriate breaker in your home s service panel breaker box. An electric water heater has one or two thermostats depending on the gallon size of the tank. The elements do not heat up at the same time.

The top element heats the water first and then the bottom element kicks in. The thermostats regulate the temperature of the water by turning off and on the heating elements. 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. How to set the upper and lower thermostats on dual element water heaters.

How electric water heater thermostats work. You can test them with the power off using an ohmmeter to measure resistance or with the power on using a voltmeter to measure voltage. If the thermostats are okay you need to test the water heater elements. Electric water heaters have one or two elements and each is controlled by a thermostat.

Testing is the only option if you want to determine whether or not one or both of them has failed. Free delivery with 45 order. Free delivery with 45 order. If the hot water heater is not working one of the thermostats may be bad.

A dual element water heater uses two heating elements controlled. Set your store to see local availability add to cart. Most electric hot water tanks have two elements and two thermostats. Many modern homes come with dual element water heaters.

Electric water heater thermostats are a fairly simple devices that can fail from time to time. Rheem protech upper thermostat for electric water heaters model sp11699 21 62 21 62. Rheem protech upper thermostat for electric water heaters model sp210246 23 59 23 59.