Testing Electric Furnace Elements

If the meter needle does not move or remains at infinity the heating element is no longer working and needs to be replaced.

Testing electric furnace elements.

This is a fairly simple test but one that. What you should see assuming a 6 element furnace is the following. 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.

Check fuses element sequencers thermostats and transformer duration. 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. Also check the terminal ends for any rust dirt or corrosion. Testing a conventional element 1 know the resistance of the element should be this can be calculated using known values.

Remove the insulation and disconnect the electrical wire at the terminal and use either a multimeter or an ohmeter to test the electrical flow. Performing basic checks 1. Turn the oven on and see if the heating elements glow red or orange. Turn your oven off and let it cool if necessary.

I show how to test fuses elements s. Check to see if the element is physically. After 30 to 90 seconds the current draw should jump to 42 amps. Disconnect the electrical wires at the heating element terminals.

Heating element testing duration. How to diagnose electric furnaces. This is so whether testing upper or lower heating element. In this video i show how to use basic electrical troubleshooting methods to diagnose problems with electrical furnaces.

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.