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Gold Star convection microwave model ER-930C

Microwave blew a circuit breaker after cooking a potatoe.  Reset circuit breaker but micowave is dead.  No display, no interior lights, nothing
Any ideas?

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Re: Gold Star convection microwave model ER-930C

If you have a sentimental attachment to this microwave (lots of the older ones feel so much more "quality" than the flimsy throw away versions offered today), then you might want to pick up a service manual to diagnose your issue. Here is one being offered and it has a troubleshooting guide.

Posted on Jan 07, 2012

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SOURCE: kenmore micowave oven interior light

THe microwave has to be removed from the wall and then the outer cabinet has to be removed to get to the bulb. Do not do this with the unit plugged in and do not do this if u don't know how to work on a microwave as there is a shock hazard.

Posted on Jan 26, 2009

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SOURCE: whirlpool model GT1196 SHS blew internal fuse

The HV capacitor or Diode. In rare cases the mag could be shorted. This is a dangerous area to work in for the untrained. Eric

Posted on Aug 08, 2009

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SOURCE: A Gold Star model MV1610WW

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

Microwave Oven Basic Troubleshooting Tips


Posted on Oct 25, 2010

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SOURCE: whirlpool gold GH5184XPB-4 Last used to

There are three reasons for this, a bad magnetron "common problem" or a high voltage diode and capacitor can be a factor. If the magnetron is at fault it is cheaper to replace the microwave oven.

Posted on Mar 10, 2011

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SOURCE: My Gold Star Microwave Oven MV1610WW Stopped

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

Basic Microwave Oven TroubleshootingTips


Posted on Mar 27, 2011

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Hi I have a Samsung SMH9187 micowave that is dead (no display, light, fan, mirowave).

Sounds like the main fuse blew. It's either near where the power cord enters the cabinet, or behind the control panel (if an over the range unit).

You may also have some type of failure in the high voltage circuit; based on your description of the symptoms.

Aug 16, 2014 | Samsung SMH9187ST Microwave Oven

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My maytag microwave blew the ciruit breaker a several times last night. I reset the circuit breaker each time. Then the last time, I reset the circuit breaker and the microwave did not get power back....

If there's no other appliance on that circuit, then please stop trying to use the microwave. You could be dealing with a dead short, and those sometimes leave people,,,DEAD!

I would be really cautious about trying to use it anymore without checking it first for a direct short.

You need to allow the circuit breaker more time to reset, flip to off and give it 2 minutes, then turn it back on. You should feel the distinctive click, as well as hear it if it's working properly.

Circuit breakers can go bad after repeated failures within a circuit.

The outlet could also be damaged now, but normally it's the circuit breaker getting too hot with repeated failures.

If there are a number of other items on the same circuit, then try the microwave in a plug that you know has no other items being used at the same time, preferably while wearing heavy duty leather insulating gloves to protect yourself from any possible shock. If the circuit breaker blows, you've got a possible electrical short within the microwave.
Good luck!

Mar 27, 2012 | Microwave Ovens

1 Answer


That was a very long duration to have set for potatoes. It would have made the magnetron burnt by exeeding the limit and findinf there was no conductive medium by moisture , it has ended up burning the magnetron.
First of all clean up the inside and clean up the point of the magnetron beam.Now confirm on the inside to be totally dry.
Disconnect power and check inside for break of fuse to the magnetron.If the microwave does not heat on testing with a cup of water , then it is possible that the magnetron is cooked.
Confirm the cost for the unit to decide on replacement.
Hope this helps.

Aug 21, 2010 | LG LMV1630 Convection/Microwave Oven

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Dimension 4 microwave stuck on demo mode

Here are is the manual:
Page 13 tells how to shut off Demo mode. (Press FUNCTION-0-2.)

Aug 12, 2009 | Panasonic NN-T888S Convection/Microwave...

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Model jvm131h002 Stopped working. no power or

yes, at the back of the microwave there are 4 or 6 screws, take them out and then pull the cover follow the cable( the one you connect to the outlet) going to the inside of the microwave inside you will see the fuse change it with the same size, it is a slow burn fuse

Aug 04, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

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Sunbeam SMW5500 micro/convection oven shorted out when opening door

You are decribing a typical Door Safety Switch problem. The Door Safety Switches has Failed.The Door Safety Switch is designed to shut down the Micro in the event the Micro is still cooking when the door is being opened. The first "Click" of the switch cuts off the "Cook". If it does not cut off the "Cook", the second "Click" blows the power. Otherwise it would "Cook" with the door open, and I need not to tell you how DANGEROUS that could be. It first Tripped the Circuit Breaker which supplies power to the Microwave. After Re-Setting the Breaker the same thing happened except this time the Micro is DEAD- not even a light working. Yes, there is a line FUSE inside the Micro. You however need to address the Door Switch SHORT before replacing the fuse. If not, it will just Blow The Fuse Again, and Again, until the Short is corrected.
Call around, ask How much to replace a Door Safety Switch.
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Fire in Microwave Using Sensor Control for Potato

Please contact your home insurance to have the problem logged as a failure of the microwave. The insurance company will most likely help you with the smoke damage to the house and will contact the manufacturer to get their money back... there might be an issue with the manufacturing of these appliances.

Jan 04, 2008 | Amana ACO1860 Microwave Oven

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GE Over the Range Microwave/Convection won't start

So it's dead - that is to say no display, no lights, and no response from the keypad?

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 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.

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:

Please write back with more details if you need further help.

We appreciate your thoughtful rating of our answer.

Nov 25, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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