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Easy quick tutorial video on how to test a hot water heater element using a multi-meter. The standard test of the condition of an electric water heater element is the resistance test described in the article above.
How To Test A Hot Water Heater Element 11 Steps With Pictures
All you have to do is to connect these probes to the heating element and check the reading to understand the condition of the water heater element.
Electric water heater element test. As were about to show in detail one can test a water heater heating element by a simple procedure using a continuity tester or a volt-ohm meter- a VOM. To begin testing your water heater element you will need to turn off the breaker which powers the water heater. This is important especially as open and grounded heating elements result in inaccurate tests.
First turn off the breaker in your main electric panel to the water. Now remove the water heater element form the water heater thermostat and then set your multi meter knob on connectivity testing. Your water heater will usually have directions on how to relight it.
There may be some insulation that needs to be pushed back out of the way. Testing is the only option if you want to determine whether or not one or both of them has failed. Remove the cover plates to get to the element ends and the thermostats.
See DMM DIGITAL MULTIMETER HOW TO USE. See Testing Electric Water Heater Elements for. If the heating element is dead shorted out it will show continuity - that is not an OPEN circuit its a CLOSED one.
For details on how to use electrical test equipment see DMMs VOMs SAFE USE OF. If the thermostats are okay you need to test the water heater elements. Then connect your testing leads to water heater element terminals or connection points as is shown in the below diagram.
And see VOLTS AMPS MEASUREMENT EQUIP. An electric water heater has two elements an upper and a lower. It means you will have to check if the electric current pauses between two connection points.
There are cover plates on the outside of the tank that are held in place by a couple of screws. There are two probes connected to the multimeter. Or set your multimeter on ohm testing or diodes testing.
If the meter needle does not move or remains at infinity the heating element is no longer working and needs to be replaced. The pilot light will ignite your water heaters burner and if it goes out there is nothing to heat the water. You can test your water heater element using a multimeter.
Then you will need to inspect the component for continuity. Remove the insulation and disconnect the electrical wire at the terminal and use your multimeter to test the electrical flow. For that you need to know how a multimeter actually works.
If you want to test a thermostat on an electric water heater you will also need to check the heating element. Electric water heater thermostats are a fairly simple devices that can fail from time to time. Remove the upper access panel screws first on the electric water heater with a screwdriver.
You will also need to check the water heater thermostat with digital multimeter tools. You can see if the pilot light is out by removing the cover of the water heater and inspecting the light. To test a damaged heating component you will need to turn off the electricity to a tankless appliance and take away the heating elements covers.
For safety purposes there must be no electrical power running to the heater. Your electric breaker is usually a metal box attached to. To look for faults you will need to use a screwdriver.
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