How To Check Water Heater Thermostat With Multimeter

August 23, 2021 Post a Comment

Okay so the process of testing thermostat isnt really very complicating. See how to replace one on another video on my channel.

How To Test A Hot Water Heater Element

Im guessing you already know how the thermostat.

How to check water heater thermostat with multimeter. Take an analog multimeter and adjust it to the lowest ohms of resistance. Use a screwdriver to get rid of the covering on the water heaters elements. Check for the breaker labelled Water Heater inside the panel box.

Test The Thermostat Using An Analog Or Digital Multimeter The last step of how to check thermostat on water heater is to check the thermostat with a multimeter. Here are the steps to follow when using a digital multimeter to check the resistance in the heater elements. Now remove the water heater element form the water heater thermostat and then set your multi meter knob on connectivity testing.

You may need to set up and calibrate the multimeter as per the instructions and then turn the dial to the lowest ohm rating. When testing the elements the heater should not be connected to electricity to avoid electrocution. This first thermostat in the video has a reading of 01 - so its actually working fine.

Join it up with a new circuit and you will be able to know the status. This video shows how to test a water heater element using a multi-meter. Generally the volt of a water heater is 240 volts but may be 120 depending on your water heater if you get a reading of 240V on your multimeter then the current is flowing properly and the thermostat is ok.

Clip one of the test leads from your DMM to each terminal on the thermostat. If the water is hot enough at appointed temperature the multimeter will point near Zero. You can use the tutorial for almost any type of water heater out there.

Note the reading of your water heater element. This will mean that the hot water will quickly run out or you only get lukewarm water. If the opposite thing happens that means your thermostat.

Turn Off The Power Supply. If the water temperature is cold then the meter wont show reading. Connect the multimeter pin ends on point 1 3 as shown in the picture below.

Then connect your testing leads to water heater element terminals or connection points as is shown in the below diagram. Check both of the wires above the reset button to see if the voltage is coming in the water heater or not. Below are steps on how to test the water heater thermostat.

How to Test Water Heater Thermostat Using Simple Tools Available at Home. The meter will indicate an open circuit by displaying OL on its Liquid Crystal Display LCD for a good thermostat that has normally open NO contacts or it will display zero 000 Ohms for a good thermostat that has normally closed NC contacts. If your water heater is 3500-watt the multimeter will read 16 while 4500-watt will register between 12 13.

Switch off the breaker supplying power to the water heater. Reconnecting the circuit Now that you have installed the thermostat its time to check back the status. You will see the inscribed wattage and ohms.

Now let us get started with the following steps on how to test a water heater with multimeter. Or set your multimeter on ohm testing or diodes testing. Complete Element Thermostat Kit.

Adjust the needle to zero and pinch the probes together to standardize the meter. Go to your circuit board and turn off the circuit breaker. Look closely at the base of your water heater tank.

You will also need to check the water heater thermostat with digital multimeter tools. Move to the thermostat terminals and check. Switch on the heater for at least two hours and change the dial settings to a decent temperature.

To look for faults you will need to use a screwdriver. Set the multimeter dial to the lowest or Rx1k that is resistances times 1000. Httpsamznto3buXcERFieldpiece SC260 Electrical Tester.

A working thermostat should have a reading of zero or as close to zero as possible.

7 Steps To Test Water Heater Thermostat