Question about Sharp R-530ES Microwave Oven

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Sharp R-530ES microwave oven stopped working

After hitting the START button, the light comes on and the timer counts down, but no other operation- no heat, no fan, etc.

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  • ddahl001 Dec 29, 2008

    Not just a fix, but advice on how to keep the problem from occuring in the future. Your folks are the BEST!

  • Anonymous Mar 15, 2014

    sharp R-530ES-T has no heat



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You have a bad secondary interlock (lower door switch) or its mount is damaged or out of alignment.

We have the service manual for this model and have uploaded it to our site here to help you.

You will need the
free Acrobat Reader to view or print it in case you don't have it.

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

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 28, 2008

  • timnoles Jan 03, 2011

    Is this something that would happen in the middle of cooking? My wife was heating up some food and had it going for about 1 minute. Half way through, it just stopped working. Now, when we try to start it, we are getting the description from above (After hitting the START button, the light comes on and the timer counts down, but no other operation- no heat, no fan, etc.)



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See the service manual and this file:

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