Question about Whirlpool Microwave Ovens

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My microwave was working fine 2 days ago. then all of a sudden, I smelled a burning wire smell and am getting an F7 on the display panel. Is this something worth fixing?

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  • Whirlpool Master
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The burning smell can be a spark from the HT section, if so please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is leaking and sparking to the ground. If it was stored, it is quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron.
So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off.
Now keeping clear switch on , use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues , you can use the microwave safely

Posted on Mar 11, 2011

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  • Master
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It is possibly in need of a diode pack and a magnetron. Prices I cannot say as it depends who you use to fit them for you.

Posted on Mar 11, 2011

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Posted on Jan 02, 2017

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