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Frigidaire Microwave exhaust keeps running after some parts have been replaced. - Frigidaire FGMV175QFA Microwave over the stove. 2016 Model Options Email this topic Watch this topic Print this topic » Normal Threaded
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robbietpa		#1 Posted : Monday, March 29, 2021 11:27:01 AM(UTC)
Rank: Member Groups: Registered Joined: 3/29/2021(UTC) Posts: 0 Location: MI Thanks: 1 times		Hello I have two of the exact same microwaves. One would blow fuse inside of cabinet after opening door when food was cooking. So I was told to replace the door switches, so I did no problem. After replacing those switches the microwave does not blow fuse any longer but instead the exhaust fan keeps running. So I ordered a new limit switch and installed, it did not repair the problem. I then installed a new exhaust fan switch in the exhaust port and have the same problem fan will not turn off. Now keep in mind I have also tried microwaving some water when exhaust fan is running and it will not heat the water either. Everything on the keyboard seems to function okay. I even switched the keyboard pc board panel out of my other one and still have the same problem. Can anyone give me some advice? What will keep the exhaust fan running after all these parts are replaced and not allow the microwave to heat?Please help. Thanks Robb


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ThatGuy		#2 Posted : Monday, March 29, 2021 5:07:14 PM(UTC)
Rank: Advanced Member Groups: Expert Joined: 7/27/2010(UTC) Posts: 1,395 Location: near the middle of nowhere Was thanked: 24 time(s) in 24 post(s)		On the back of the touch panel is the main board and on it are a bunch of small black rectangular boxes. There are the relays that control the fan, turntable motor, light, etc. If their electrical contacts get burned they can stick closed or even open. When the fan is stuck on, try tapping the fan relay lightly. If the relay is bad, it could be replaced. You'd need the right relay and the ability to solder.

1 user thanked ThatGuy for this useful post.		robbietpa on 3/30/2021(UTC)
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