Check Water Heater Thermostat With Multimeter

Unless it happens the thermostat has defected. At times the water from your electric heater could be cold and the heater not functional despite the power being on. Now use multimeter to check that the power is really off from water heater.

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A bimetallic element made by fusing two different metals together inside responds to a change in temperature by bending as the metals expand at different rates when the element is heated or cooled.

Check water heater thermostat with multimeter. If your multimeter points near zero then the thermostat is okay. You need to touch tops to legs using the connections of a multimeter. When a water heater no longer produces hot water. High limit reset button check.

Hot water heaters are an important home appliance that heat water for use in your sinks dishwasher washing machine and shower. 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. To view all our multimeter ranges go to http bit ly 1edndeo in this video josh shows us how to use a multimeter to check for faults in a thermostat. If the water is cold the multimeter will point near zero.

You can also try a voltage stick instead of it is available. Connect the multimeter pin ends on point c d as shown in the picture below. 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. Here are the steps to follow while measuring the voltage of your heaters thermostat.

In such a case there is a need to carry out a voltage test. A digital multimeter which measures voltage current and ohms resistance is an excellent instrument for checking thermostats. So how to test water heater thermostat. All you need is some tools screwdriver and multi meter etc.

You don t need professional skills for this. An electric water heater has a thermostat like a tankless water heater. It s very easy to test and replace the faulty thermostat of your water heater. An electric water heater uses one or two heating elements to heat the water inside the tank.

If the reading shows zero then it s safe to proceed. Connect the multimeter pin ends on point 1 2 as shown in the picture below. If the water in your home doesn t get any hotter than a lukewarm temperature try turning up the heat if that doesn t solve the problem it s possible that 1 of the heating elements in the water heater is malfunctioning or broken. You just have to be a little careful to avoid any kind of accident.

Luckily testing and fixing a faulty thermostat requires a few tools such as a multimeter and a pair of screwdrivers. And basic knowledge of the replacement. Measuring the voltage of a water heater thermostat using a digital multimeter. You don t even need any special skills to solve this problem.

How to test a water heater element with a multimeter.