Testing Electric Furnace Elements

Also check the terminal ends for any rust dirt or corrosion.

Testing electric furnace elements.

In this video i show how to use basic electrical troubleshooting methods to diagnose problems with electrical furnaces. Turn your oven off and let it cool if necessary. This is so whether testing upper or lower heating element. If the water heater is hot run hot water in the building with the water heater electrical power off until water flows lukewarm or colder.

Look at the top and bottom of the oven to find your elements. Disconnect the electrical wires at the heating element terminals. Testing a conventional element 1 know the resistance of the element should be this can be calculated using known values. If the meter needle does not move or remains at infinity the heating element is no longer working and needs to be replaced.

Turn the oven on and see if the heating elements glow red or orange. Heating element testing duration. Inspect the burner element for any damage which can include warping bubbling or damage to the insulation sheath. I show how to test fuses elements s.

This is a fairly simple test but one that. Performing basic checks 1. When the thermostat comes on the meter reading will jump from zero to 21 amps as the first element comes on assuming a 5 kilowatt element which is the most common. Water heater not heating.

R v x v p where v is the voltage powering the element p is the power the element uses and r is the resistance an example calculation is shown in the tips section. After 30 to 90 seconds the current draw should jump to 42 amps. If you find some clean the terminal ends with a fine sandpaper or a piece of steel wool. How to diagnose electric furnaces.

Check fuses element sequencers thermostats and transformer duration.