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Re: Whirlpool Duet Washer
F11 is a serial communications error. This is a symptom of an electronic control board starting to go bad. As defined by the technical information provided by Whirlpool, the error could also be caused by a loose or broken wire connector and/or the central control unit (CCU) (front panel). I would double check all your wire connections leading to the control board and CCU, first. Don't be surprised, however, if the problem persists and you eventually have to replace the electronic control board. To check, follow these steps:
1. Unplug washer.
2. Remove the three screws along the top of the washer in the rear that holds the top panel on.
3. Once the screws are removed the top should slide back then lift up.
4. The electronic control board is gray (or white) in color and located in the rear of the washer. It's impossible to miss. Double check all the connections ONE AT A TIME.
5. Double check the wire harness connections leading to the front panel as well.
I hope this resolves your problem, but experience has proven that this is usually an Electronic Control Board failure. It could actually be a combination of the CCU as well. The part numbers are as follows:
Electronic Control Board: 959503
Central Control Unit: 1025824
Both boards cost about $150 each. Let me know if this helps you.
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I did some research on F-11 codes and Vibration-- See if this helps:
The F11 fault is actually described in the tech sheet as a "Serial Communication Fault" involving the MCU (the washers computer)
and the DC Drive assembly that runs the motor. If you are not familiar
with a DC drive, it is simply a controller for the motor that varies the
voltage to the motor to change speeds.My research showed many people
solving this problem with a replacement of the control unit or the
relays inside of it. The problem with the engineering and design of these washing machines was that they all vibrate excessively unless they are sitting on a floor constructed of a ton or more of solid concrete.
vibration eventually makes either the motor serial/tach connector (or
possibly one of the five relays in the control unit) intermittent, and
the machine begins to throw error codes
I have found a good whack on the side of the machine seems to work.
No kidding. Here's what happens: Stupid F11 flashes. I hit the
pause/cancel button. It flashes the remaining time on the cycle. I hit
the start button. Sometimes that just does it. If it doesn't I give it a
whack on the left side of the machine, (if you're facing it), in the
middle, about 6 to 8 inches above where the drawer is.
this is not good . F/11 CODE serial communication error . the communication between the central control unit (ccu) and the motor control unit (mcu) cannot be sent correctly . now that sounds bad . don't panic!! ck the wir harness connectors to the mcu ( motor ) and ccu ( program panel . something is loose/ also ck the drive systen for any worn of failed components .belts/pulleys/ leakage.. ck mcu/ the ccu/ ck motor/ ck wire harness. -hope this will help . (look for loose connections this is most common.. mm