Question about Microwave Ovens

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Microwave not heating food

It has stopped heating using the microwave function. The oven and grill function seem to be working fine and the light is on. It makes the noise as if it is working but the food comes out stone cold.

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  • Topi Dec 31, 2007

    DAnby over the oven microwave wont heat..sounds like it's working but it's not. All other functions like the clock, turn table, exhaust venting etc works fine. 2.5 years old. Any ideas on what I should look for? Where is the fuse located?


  • tinknocker61 Jan 04, 2009

    Hello VEKAT,I have the same unit whirlpool GH5176xps-o and it also won't heat.I have check Magnetron terminal to terminal and have my olm set at x10 and get o ohms.Also checked terminal to body casing in x1k and still get o olms this should be infinite.Or should this be Filament to the chassis.Infinite should that be 0 olms to the right of meter or to the left of meter which would be 220 olms and then oo.I have also checked the volts to the 1100m inverter and it comes up120v.So i am having a feeling it is the inverter. do take care, Harold

  • tinknocker61 Jan 04, 2009

    To Topi: I don't know if you resolve your problem,but I have the same one.So I took apart my magnetron and had noticed some burn marks on the inside copper coil.I am not sure if I am testing this item right.In my book it says to check in RX1 the filament terminal,does that mean terminal to terminal? and to check in setting RX1k the filament to chassis is that the terminal to the outside frame? Also a note if your magnetron is out it does have a 5 year warrenty.that is in the back of the book.Harold

  • Anonymous Mar 12, 2014

    oven is working but food not heating give me solution

  • Anonymous Mar 30, 2014

    food stays cold



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Check the protector connected at the capacitor and at the magnetron coil windings, check using an ohm meter.,meter should read to zero

Posted on Dec 21, 2007

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Check magnetron and related circuit, and control unit and highvoltage section..

Posted on Nov 25, 2007


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Brand and model might help, too, but the basics are the same, so we're happy to help you with more information.

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