Whirlpool duet washer- won't start after replacing CCU and door latch - Appliance Repair Forum

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Whirlpool duet washer- won't start after replacing CCU and door latch Options Email this topic Watch this topic Print this topic » Normal Threaded
Model: WFW8300SW0	Brand: Whirlpool	Age: 5 - 10 years
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Ivanick		#1 Posted : Monday, May 22, 2017 6:07:41 PM(UTC)
Rank: Member Groups: Registered Joined: 5/17/2017(UTC) Posts: 2		Whirlpool duet front load washer will not start. All lights are functioning and no error code is given. After pressing start, it sounds like it latches and locks, no cycle starts and you can't cancel or power off without cutting the power. I have replaced both the computer control board and the door latch assembly and neither has worked.


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brobriffin		#2 Posted : Tuesday, May 23, 2017 6:46:17 AM(UTC)
Rank: Member Groups: Registered Joined: 6/13/2014(UTC) Posts: 781 Was thanked: 1 time(s) in 1 post(s)		Have you gone into diagnostic mode to retrieve any error codes?
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Ivanick		#3 Posted : Tuesday, May 30, 2017 3:25:59 PM(UTC)
Rank: Member Groups: Registered Joined: 5/17/2017(UTC) Posts: 2		Error code F-28


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brobriffin		#4 Posted : Wednesday, May 31, 2017 4:33:24 AM(UTC)
Rank: Member Groups: Registered Joined: 6/13/2014(UTC) Posts: 781 Was thanked: 1 time(s) in 1 post(s)		F-28 is typically a communications error likely between the CCU and MCU. Many times the error is not a bad CCU or MCU but bad serial wiring connections between the two. This can be caused by corrosion of the wiring ends where they connect to the control boards. It may also be a bad wiring harness (very uncommon). I have found that simply disconnecting and cleaning the wiring connections will do the trick. Try this open up the machine and disconnect each wiring connection to the CCU and clean it then reconnect it. I use a product call CRC contact cleaner. Do the same to all connection the Motor Control Unit. Reassemble the machine and give it a spin. See if this does the trick. Let us know the outcome. brobriffin attached the following image(s):
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