Mary B for Model Number Whirlpool Duet sport front load washer, about 4years old, bought new. Washer worked fine with previous brief episode of error F7, resolved. After a move, found new problem with first attempt to use washer. Received error code F28 at beginning of last Spin/rinse cycle and machine stops. This is in every setting except spin/drain setting; during this setting, the timer advances ok..no error code, but it won't spin. I do believe I hear the pump attempting to work. Technician came out, cleaned out the drain, checked voltage on CCU and CMU, reset machine and watched it run through filling, spinning, draining....did not realize at that time, code wasn't coming on till last spin and drain. thought it was ok. He now believes it is "probably" the CMU. Expensive fix, any advice or suggestions?
Answer Mary, The F28 error, usually indicates an issue in the MCU. " F 28 = Serial communication Error". Did the servicer check for possible loose connections in the harnesses ? and that the door latch assembly worked correctly. If there aren't any loose connections, and the washer wasn't damaged during the move, Then you'll want to start at the MCU. Good Luck and Thanks Read More... Answered by AppliancePartsPros.com | Monday, May 14, 2012