Question about Sharp Microwave Ovens
If it turns on and seems like it is working, sounds like it is working, but the food never gets hot, your problem is most likely the magnatron. It will need to be replaced, there is no other repair for this that is intended for the user.
Find a repair center near you and if it is under warranty you can get it fixed for free.
If it is not under warrany, it may not be worth getting fixed. It just depends on how much money you paid for it. Most repaires like this cost anywhere from $100 to $175 depending on the exact cost of the magnatron and the shops labor rates.
I hope this was a little more help to you than some other advice you have recvieved.
Posted on Jun 26, 2008
There may be a thermal problem check it
Posted on Jun 20, 2008
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Posted on Jan 02, 2017
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Investigate these three areas if your microwave won't heat but you hear a loud buzzing or humming noise:
A diode is an electronic component that readily
passes current in one direction only and blocks the flow of current in
the opposing direction. If your microwave's diode has become defective,
your microwave will not heat and you will hear a buzzing noise. Test the
diode to determine if this is the cause of your problem. Replace it if
it is defective.
A capacitor is an electrical device which stores
electricity. A defective capacitor may be why your microwave is not
heating but you are hearing a buzzing or humming noise. The capacitor
will have to be tested to determine if this is the cause of your
problem. A defective capacitor will have to be replaced before your
microwave will work again. Make sure you discharge the capacitor before you test it, though.
A defective magnetron is the third possible cause of
why your microwave is not heating, but you can hear a buzzing noise.
Test your microwave's magnetron. Replace it if it is defective.
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Hi, Microwave Oven Troubleshooting Tips
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Microwave Oven Troubleshooting Tips
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