Question about Microwave Ovens
When you hit Start to cook, do the inside light and turntable come on?
Any unusual noises? Is it louder or quieter than usual?
These answers will help me judge whether it's in the high voltagesection (magnetron, transformer, or diode) or the control section(door switch or control board relay or connection).
Thisis usually caused by either a bad door switch, a loose door switchmount (which are pretty simple problems to fix) or occasionally aproblem on the control panel.
Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.
Door switchor mount trouble can be caused by slamming the door or by opening thedoor while it's cooking without hitting the Stop pad first.
There areplastic mounts inside the microwave which hold the door switches andonto which the door latches lock when you close the door.
The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.
Sometimes it'sa broken tab on the switch holder, allowing the switch to rotate justout of position. This tab can be hard to see, since it is under thebottom edge of the switch.
One test that sometimes helps is togently lift up (and/or push down) on the door or handle as you try tostart it. If it works or tries to work, then it's a door switch mount ordoor alignment issue.
If you or someone you know decide to lookinto it, we have critical information on safety, disassembly and doorswitches at our site, and our link is at our listing here on FixYa:.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Sep 27, 2008
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