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What does erroe code f28 mean

What does error code f28 mean

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F28 error on washer

Posted on Oct 15, 2010

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Serial communications problem. Could mean one or both of these components is bad. The MMu or CCU.

Posted on Feb 20, 2010

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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.
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

http://www.slashdocs.com/mypwxs/8178686-maytag-epic-z-front-loading-washer-technical-education.html

Posted on Aug 02, 2013

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Posted on Jan 02, 2017

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1 Answer

I have an F28 error what is wrong


As far as I know F28 error code means - SERIAL COMMUNICATIONS ERROR/MOTOR CONTROL UNIT ERROR. Caused by either a communications problem between the Central Control Unit and Motor Control Unit, or Motor Control Unit internal failure.

Jan 12, 2015 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Whirlpool duet wfw9200sq02 f28 error code


Hello,

What the F28 error code means is "serial communaction error" to put that in simple terms it says the main control board isn't talking to the motor control board. What would need to checked when the F28 code is displayed is for good tight wire connection on all the wiring harnesses between the main and motor control boards, if all the wiring plugs fit tight onto both control board while i hardly advise this and belive in the you can do it byself spirit it advise, ya call for service so the operation of both control boards can be checked to see which on has failed.



GENE

Oct 06, 2011 | Kenmore Elite 45986 Front Load Washer

1 Answer

Washing stops in cycle with an F28 code.


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:-

http://whirlpool.custhelp.com/app/answers/detail/a_id/2885/~/display-shows-an-error-code---front-load-washer

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


Sep 02, 2011 | Whirlpool Washing Machines

1 Answer

WHAT DOES F28 MEAN


Error codes were F28 (serial communications error) If you have removed the control panel cover there is a small switch that must be taped down, otherwise when you put the cover back on it may allow that switch to remain up and cause this error. If you have never removed the cover and are getting this error it could be a bad control panel.

Mar 22, 2011 | Kenmore Front Load Washer

1 Answer

What does the error F25 mean


Sorry to read about your problem, I hope this helps you out.

The error code F28 means one or both of these parts are bad.
Motor Control Unit (8540135)
Microcomputer Machine Control Unit (8540788)
It would be a good idea to order both, as both components have been problematic for
error code F28
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Dec 29, 2010 | Maytag EPIC MFW9700S Front Load Washer

1 Answer

Code f28


Hi, the error code F28 means one or both of these parts are bad.
  • Motor Control Unit (8540135)
  • Microcomputer Machine Control Unit (8540788)
It would be a good idea to order both, as both components have been problematic for error code F28. If you find either the MCU or the CCU(Microcomputer Machine Control Unit) fixed it.

Oct 02, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

I washed a large load in our Whirlpood Duet Washing Machine and it stopped with a flashing F28 code. I unplugged it for 5 minutes and it still will not run a cycle without stopping with a flashing F28...


The error code F28 means one or both of these parts are bad.
Motor Control Unit (8540135)
Microcomputer Machine Control Unit (8540788)
It would be a good idea to order both, as both components have been problematic for error code F28

If you find either the MCU or the CCU(Microcomputer Machine Control Unit) fixed it.

You can download the online repair manual in the below link

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/6545d78b3f479480852571650061b1ba/$FILE/8178558.pdf

On page# 4-20 it shows how to access your MCU.

Jun 27, 2010 | Whirlpool Duet GHW9150P Front Load Washer

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