Question about Microwave Ovens

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Clarification on microwave

Sharp SN R-510HKF M# 428742 Made in 2005, purchased in 2006
The microwave inside light comes on when you punch in the time and power desired and hit start;
but the carousel does not turn and there is no noise or cooking.
Myhusband fiddled with the door latch and it did respond for a shortmoment; otherwise it has not worked; all the panel lights work all thetime, timer, etc..

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That would be a bad primary interlock switch (bottom door switch) or its mount is loose or broken.

See this link: http://www.microwavedisplay.com/doorsw.txt

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto 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's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If you only need a switch, you can order a universal type here for $5 postpaid.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Dec 02, 2008

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This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

Even though a door switch clicks, it may still be bad inside.

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