What does error code f28 mean
F28 error on washer
Serial communications problem. Could mean one or both of these components is bad. The MMu or CCU.
SOLVED: This solution works for Kenmore, Whirlpool, and Maytag. They all use the same components. Also, this will work assuming your CCU isn't actually broken.
I have been chasing this issue for several months. I am on my third Computer (CCU). I buy a new computer and it only lasts a month. This latest coputer only lasted a week. http://www.slashdocs.com/mypwxs/8178686-maytag-epic-z-front-loading-washer-technical-education.html
An interesting thing occured to me, every time I played with the wiring on the washer, it would work for two or three loads, then my F-28 error would come back.
F-28 is a communication error. There are two computers in the washer. Central Computer and motor controller computer. There is a serial bus between them (3 wire connector on the top of the CCU with a blue stripe). From my research, I discovered that these washers have a corrosion problem. The data communication wires are susceptable to this.
One thing I noticed was that my washer seems to always quit when starting the spin cycle when the washer is really shaking.
Here's the solution:
Find that 3 wire connector and clean the contacts on both sides of the wire harness (CCU and MCU sides). This can be accomplished by running some light sandpaper between the contacts. You should also do this to the wires going to the motor sensor on the back of the motor. This solved my problem. I figure I will probably need to go in and repeat this every year or so.
I also found this awesome troubleshooting guide. It has A LOT of great information
Hi
This code indicates an electronics
communication problem with the washer.Please check this link to get a detailed
idea related to the lists of codes and the resolutions to them:-
The error code F28 means one or both of these
parts are bad.
Motor Control Unit ,Microcomputer Machine Control Unit .
It would be a good idea to order both, as both components have been problematic
for error code F28.
Please get back to us if you have further
query or else please accept the solution.
Thanks for contacting fixya.com
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