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Why does my Whirlpool over the range microwave model GH9185XLB-1 display the F7 code?

The F7 code keeps me from using the microwave. Does F7 mean my microcomputer is defective? If I purchase this from a parts store and it doesn't solve the problem can I return the part?

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Microwaves , Ranges , Whirlpool , Appliances
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1 Answer from this member:
Lyle W
The F7 indicates that power was lost to the magnetron. You could have either a failed main control board or a failed inverter board. This type of internal component failure will need to be diagnosed and repaired by a technician. Microwaves are inherently dangerous to service. Internal capacitors can retain a lethal electrical charge even when the microwave is completely unplugged. A microwave radiation leakage test must be performed on the unit following any internal repair. These are the reasons that I recommend that you have a technician fix this microwave problem.

Most control boards are not returnable once they are purchased. Without diagnosing the failure, there is not way to know exactly which component has failed.
by Lyle W Earned 2,953 community points in Appliances
October 28th, 2009
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