Testing Electric Furnace Elements

In this video i show how to use basic electrical troubleshooting methods to diagnose problems with electrical furnaces.

Testing electric furnace elements. Remove the insulation and disconnect the electrical wire at the terminal and use either a multimeter or an ohmeter to test the electrical flow. What you should see assuming a 6 element furnace is the following. This is so whether testing upper or lower heating element. Performing basic checks 1.

Turn the oven on and see if the heating elements glow red or orange. How to diagnose electric furnaces. This is a fairly simple test but one that. 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.

If the meter needle does not move or remains at infinity the heating element is no longer working and needs to be replaced. Check to see if the element is physically. If you find some clean the terminal ends with a fine sandpaper or a piece of steel wool. Look at the top and bottom of the oven to find your elements.

I show how to test fuses elements s. Inspect the burner element for any damage which can include warping bubbling or damage to the insulation sheath. 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. Disconnect the electrical wires at the heating element terminals.

Heating element testing duration. After 30 to 90 seconds the current draw should jump to 42 amps. 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. Testing a conventional element 1 know the resistance of the element should be this can be calculated using known values.

Water heater not heating.