Question about Washing Machines
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.
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
Posted on Aug 02, 2013
If your washer is a Kenmore
The F28 error code on this model of washer indicates a communication error between the motor control unit and the computer circuit unit that results in the washer stopping during a cycle.
Read more: How to Unlock a Kenmore Washer HE2 Code F28 ' eHow.com http://www.ehow.com/how_7727221_unlock-washer-he2-code-f28.html#ixzz1GUHtruhM
Posted on Mar 13, 2011
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Posted on Jan 02, 2017
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