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Author Topic: Kenmore 110.42934200 washer F-DL  (Read 139 times)

Offline 70runner

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Kenmore 110.42934200 washer F-DL
« on: June 10, 2022, 06:58:49 PM »

After honorably serving for 20yrs, Kenmore Elite HE3T went dead a week ago.  1st CCU from Appliance Parts Pros DOA.  2nd CCU from APP can't get past F-DL.  CCU diagnostic produces same F-DL.  New door latch switch, same F-DL.  Checked micro switch and solenoid in original door latch switch and new switch, all good.  Verified door closed micro switch closed signal at CCU board connector.  Checked harness from CCU solenoid connector to door latch switch connector, good.  With machine on, pulled solenoid connector at CCU and measured voltage at CCU board, nothing.  CCU is receiving proper door closed signal from micro switch but not providing voltage to latch switch solenoid.  Explained all this to APP, they had difficulty following the troubleshooting, ended up blaming the "harness", won't replace the CCU.  Turns out they aren't really pros after all.  It isn't the harness or the door latch switch.  Retired EE, know how to check a harness. 

Is there something else in the washer that could prevent the CCU from activating the door latch switch solenoid?

Offline AJ

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Re: Kenmore 110.42934200 washer F-DL
« Reply #1 on: June 11, 2022, 09:09:57 AM »
Hi,

Wow 20 years, that's a long time!
It sure sounds like an issue with the CCU board yet to me from the troubleshooting steps you posted.


Offline 70runner

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Re: Kenmore 110.42934200 washer F-DL
« Reply #2 on: June 11, 2022, 01:20:54 PM »
It was the CCU.  As a long shot, I reinstalled the first replacement CCU (it had briefly shown signs of life).  Presto, door latches (a wonderful sound :) and CCU diagnostic throws an F13, dispenser.  Dispenser motor working, but wouldn't stop cycling.  Inspected dispenser harness.  On CCU side, one of the connector pins had broken, fortunately the lower part that doesn't make contact with board.  Pushed the upper part of the pin down and washer again fully operational.  Need to find a backup dispenser harness.

Offline AJ

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Re: Kenmore 110.42934200 washer F-DL
« Reply #3 on: June 11, 2022, 10:21:12 PM »
Interesting! Good job troubleshooting. Thanks for the update!