Question about Whirlpool Duet GHW9150P Front Load Washer

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Runs intermittent faults F-70

My wifes machine (just a few monts out of warranty)runs sometimes and just quits sometimes with a Fault F-70. I unplug it for a while then plug it back in and may or may not work. It is a front load washer model WFW9200SQ00. I am an electrician by trade but have never worked on it before. Not even sure how to get into it to check for loose connections. Any help would be greatly appreciated since we live in the country and the closest repairman is about 50 miles away.

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The Duet washer is a good machine, just unfortunate Whirlpool engineers used oxidative circuit board coatings. All the circuit board connections are oxidizing causing the machines to have faulty connections. We have fixed the problem using this information.
UNPLUG the machine first . Take the top off (3 screws in the back) , remove the mother board box from the frame housing and remove the lid. Now you can see the circuit board.
Carefully remove ONLY one (clip plug-in) at a time. Scrap with a (knife or sandpaper or steel wool ) the edge connector where that plug was, on the circuit board removing the oxidated metal (it may not look oxidated but must be cleaned), Next put ( vaseline or mineral oil) on the edge connector where that plug was, NOTE: Vaseline or mineral oil is a non-conductive oil and will not effect electronic operation but will prevent further oxidation and the erratic operation of the mother board will cease.
Now do the next plug and repeat until completed.
NOTE: We recommend only one plug at a time so you do not get confused where each plug belongs.
Put the cover back on the mother board box and reattach to the frame, then put the lid back on and screw it down. End of any problems.

Posted on Nov 11, 2008


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Posted on Jan 02, 2017


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