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I have a whirlpool microwave. Model GT4185sks-2. I turned on by itself. Afterwards, no heat coming from unit.

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  • bmarks Sep 28, 2008

    Same model, same problem, no heating. The controls all work, and all voltages and resistances seem to check out. I suspect the magnetron but do not know how to verify.

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  • Microwave Ovens Master
  • 8,858 Answers

When it's plugged in, does it still try to come on?

If so, it may have a failing keypad.

And if it ran empty for too long, it may have overheated and damaged the magnetron too.

I don't see a thermostat or thermal cutout mentioned in the exploded views and parts lists, but it pretty much has to have one.

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

This is one case where that will come in handy.

If you or someone you know wants to look into this, we have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jul 12, 2008

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The cost of a new one is usually easily half or more the cost of repairing it.

Average service call just to give you an estimate is 80-90$

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- bad door switches or door switch mounts
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At our site, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information.

 

See our listing here on FixYa: http://tinyurl.com/yzjozk

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