Question about Panasonic NN-S950BA Microwave Oven

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My microwave oven control panel works,but when you

My microwave oven control panel worksbut when you turn the oven on it no longer cooks

Posted by Anonymous on

4 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: faulty microwave oven

So it's dead? (No lights, no beeps when you press a key?)

A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open. When it cools, it closes the circuit and allows power through again.

If it's random, it may be a bad connection, usually on the control board or fuse holder.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

But - this model uses and inverter. Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here:
http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

But if you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Posted on Nov 18, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Panasonic nn-p295 blows buss fuse when turned on for cooking

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer. But this is likely an inverter model, so it wouldn't have one and would be some other component in the inverter I'd say.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.microwavedisplay.com/safety.txt

http://www.microwavedisplay.com/disassembly.txt

http://www.microwavedisplay.com/doorsw.txt

http://www.gallawa.com/microtech/cap_test.html

http://www.gallawa.com/microtech/xformer.html

http://www.gallawa.com/microtech/mag_test.html

The best place to order Sharp parts is Tritronics. Or you can call them toll-free at 866-779-5835.

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

Posted on Dec 26, 2008

heatman101
  • 43501 Answers

SOURCE: intermittent heat in microwave

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
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Posted on Sep 30, 2010

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