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Sharp Microwave died after Power Surge

I have a Sharp R530 countertop microwave. The display panel had gone partially blank a few years back, but the unit continued to operate normally.

Then a few weeks ago, after a power outage, the display magically returned to normal, but the unit started acting up. While operating, the timer would continue to count down, but the unit would stop working for a few seconds (turntable would stop, fan would stop and presumably magentron too). Then after a few seconds, everything would come back on..

Then yesterday, the same thing happened, but it didn't start back up again. Now the display continues to work, but othere than the interior light, nothing happens inside the microwave.

Is this something that can be fixed with a display panel rebuild or is it more serious?

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Do you wast a lot of time tring to buy a part for a Sharp product I have all outlets including the manufacture web site or by phone are useless try these guys on this web site they know what they are talking ..Norm

Posted on Nov 13, 2008

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  • Microwave Ovens Master
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We have the R530ES service manual for this model and have uploaded it to our site here to help you. It's close enough to the R530EK and EW models, in case that's what yours is.

You will need the free Acrobat Reader to view or print it.

Actually you have two separate problems, and both are easily solved..

(1) The reason that only the inside light comes on when you try to cook is that your secondary (bottom) door interlock switch is bad, or its mount is misaligned or broken.

Door switch or mount trouble can be 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 one from us for $5 postpaid or local appliance parts stores, hardware stores, or places like Wal-Mart, Lowe's or Builder's Square.

(2) The display problem is something we regularly repair these for customers nationwide with our guaranteed $39.95 service in about a week.

Feel free to contact me directly for more information & help.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com


Posted on Oct 07, 2008

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Posted on Jan 02, 2017

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But I'd bet your microwave can be fixed affordably.

The main internal things which can result in this model being dead (no display, no light when you open the door, no beep when you press a pad on the keypad) would be the 20A fuse and the magnetron temperature fuse. There could also be bad connections on the noise filter board.

Also, sometimes a power surge can cause the power to be interrupted to the low voltage transformer on the board, and I regularly repair those boards. I can also write a technical statement to your insurance company or to an RV park as needed.

At my Web site, I have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

The relevant service manuals for this model are here and here.

You can order Sharp parts from Sears or Encompass.

Contact me directly if you need more help.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.MicrowaveControl.com
Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

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Hi and welcome to FixYa, I am Kelly.

This microwave has a 1 year warranty. You are going to need a new keypad to correct your symptom. Let Sharp pay for it.
http://www.sharpusa.com/~/media/15710197EE3140AD888B896ACDC912DD.ashx
(Choose "open" ) Then go to page 2 for contact information. Page 3 sates Parts and Labor 1 year.

Thanks for choosing FixYa,
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Microwave LED only displays partial numbers


We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

We have the full service manual at our site, which contains the specific safety & disassembly information you'll need here.

We really need the front door panel assembly (which contains the keypad, display board and connecting cable) as well as the power board to which the cable connects, as shown in the attached photos.


Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

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