If your microwave proceeds running when you open the door, it may be a problem via the door interlock switch. A functioning door switch offers power to various other components of the microwave and need to interrupt power as soon as the door is open. The components that could remain on when the door is open up, but the door switch isn’t working are the fan motor, stirrer motor, and internal light. Tbelow is a hook or latch on the microwave door which activates the door switch, situated inside the cabinet.

You are watching: My microwave turns on when i open the door

How to test a microwave door interlock switch with a multimeter:

Comparable to various other tests, start by verifying that you have actually dislinked your appliance from the power resource.Locate and rerelocate the door interlock switch to test it for continuity. You will need to remove the microwave’s cabinet in order to access it.Using a multimeter set to Rx1, ensure the button is depressed and touch the terminals through the meter’s probes, you have to get a reading of zero or almost zero, indicating that tright here is continuity. Next, via the probes still touching the terminals, encertain the button is not pumelted in, this test must show that there isn’t continuity.
Back to Top

*
*
*

If your microwave doesn’t shut off as soon as you push the stop or pausage switch, but does soptimal as soon as you open up the door, tright here may be a problem via the smart board. The smart board, sometimes called the manage board, controls the microwave by powering the relays. A sign of a broken smart board is not shutting off the relay when a role is complete, which is signaled by the moment you put in on the touchpad being up. To discover out if the smart board is the difficulty, you have the right to test the relays for continuity.

How to test a microwave smart board via a multimeter:

Unplug your microwave prior to beginning; you will be handling electric components.Remove the cabinet of your microwave and also find the smart board, it will certainly a lot of most likely be discovered behind the keypad.With your multimeter collection to Rx1, touch the probes to the output terminals of the relay to examine for continuity. You must get a reading of 0 when the relay is not powered. You have to also examine your smart board for any signs of burning or damage.

See more: What"S The Difference Between An Island And A Key And An Island?


Back to Top

*

More Repair Parts

Still not certain which component is broken? We have the right to sell you custom troubleshooting aid if you search with your version number.