Question about Whirlpool WFW8300SW

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Code F21 to F28

I have A WFW8300SW and I was having a problem with the F21 Code fixed that by cleaning out the pump and hoses. Plug it back in and NOW Iam getting the F28 code. I have tried everything it just seems odd that you clean out the pump and all of a sudden the CCu isnt communicating with the MCU even though the drum does spin.

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6 Suggested Answers

jsrock516
  • 5911 Answers

SOURCE: mcu and ccu

MCU = Motor Control Unit. A control board that is located in the rear of the washer at the bottom adjacent to the drive motor. Remove the back panel for access.

CCU = Central Control Unit. A control board that is located directly behind the wash tub. This is the main "brain" of the washer. You can access by removing the washer top panel.

Posted on Jun 30, 2009

TheMobilian
  • 8147 Answers

SOURCE: Whirlpool (WFW8300SW). new CCU, now No water

Tech Sheet

Posted on Jul 09, 2010

blueextc3221
  • 15935 Answers

SOURCE: Washer will not start.

F28 is a serial bus error from the CCU (Central Control Unit) to the MCU (Motor Control Unit).

All you need is some Electronics contact cleaner spray and a 1/4 inch socket to remove the top of the machine and the back of the machine.
The CCU is the computer looking box at the top front right hand corner.
Find connector M13, (has red marking on it and only 3 wires) disconnect it by pushing the retainer tab back and pulling gently on the connector.
Spray the contacts of the connector and computer with connector cleaner.
Then re-assemble connector.
The MCU is in the back lower left corner.
Find the connector with 3 wires and red mark, and remove this connector in the same way you did the other, spray it and re-install.
Put the back and top back on.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question

Posted on Sep 11, 2010

blueextc3221
  • 15935 Answers

SOURCE: Whirlpool Error Code F28

F28 is a serial bus error from the CCU (Central Control Unit) to the MCU (Motor Control Unit).

All you need is some Electronics contact cleaner spray and a 1/4 inch socket to remove the top of the machine and the back of the machine.
The CCU is the computer looking box at the top front right hand corner.
Find connector M13, (has red marking on it and only 3 wires) disconnect it by pushing the retainer tab back and pulling gently on the connector.
Spray the contacts of the connector and computer with connector cleaner.
Then re-assemble connector.
The MCU is in the back lower left corner.
Find the connector with 3 wires and red mark, and remove this connector in the same way you did the other, spray it and re-install.
Put the back and top back on.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question%%%%

Posted on Sep 28, 2010

blueextc3221
  • 15935 Answers

SOURCE: kenmore washer says there is a communication

Access the timer and unplug/replug the main harness and re-try.




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Posted on Sep 30, 2010

  • 6277 Answers

SOURCE: I get a "sud" code even though there does not seem

Hi from retired Englishman in SW France,
(What follows is my pre-typed complete guidance for drainage problems. I know you have carried out most of it but please read through and then try actually testing the pump- the last 2 paragraphs- JUST to make absolutely certain that it is not becomimg jammed/slowed by something on occasions.)

I would gently suggest as a first step that you clean the drain motor/pump lint tray/filter. So many 'faults' are caused by blocked filters and many machines will not even go to rinse or spin or release the door lock if there is any water still left inside.
Here are my complete and generic guidance notes for checking both the drain motor filter and the drain motor ;-0)
If you are unsure where the filter is, it is often behind the front lower (kick) panel (or in some machines at the rear in an awkward position!). These panels are either held on by (plasic) screws or will just pull off. Most filters are held in by a round cover/knob. Sometimes the filter will not come out with the cover and you will have to persuade it to come out to play.

REMOVE POWER AND ENSURE YOU HAVE A WATER RECEPTACLE/RAGS TO SOAK UP THE WATER WHICH IS BOUND TO POUR OUT (alternatively use a wet vac as sensibly suggested by VinnyB1234!)
It's surprising what people have found in theirs! It is always worthwhile checking it on a regular basis.
Now- whilst the filter is removed it is normally possible to see the drain motor and ensure it is not jammed by a foreign object such as a needle or a toothpick. It should be able to be turned by hand/finger- the power IS OFF!
At this point it is also possible to test if the motor works. No clothes or water in the machine, select a spin cycle and put the power back on. You should be able to see the motor turning at some point, possibly straight away. Using something suitable like a glove see if it is easy to briefly slow the motor down. If it is easy then the motor is malfunctioning.

If this has assisted you please consider a 4 thumbs up for the rating.
Thanks and good luck!
John C

Posted on Jul 08, 2011

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1 Answer

I have a whirlpool duet sport that is displaying F28 code. I have replaced the ccu unit now what do I do. It fills but will not wash, drains but will not spin HELP PLEASE!


For the F28 error code:
First, check the wiring harness connections to the MCU, the Motor, and the CCU. Make sure all the connections are tight and there are no ground wires off. Then check the connections of the CCU board within the housing.

If the wiring connections are fine then It would be a good idea to order both, as both components have been problematic for the error code F28.


Here is the CCU to order.

Here is the MCU to order.

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Whirlpool dues sport WFW8300SW00 is plugged. I've traced the plug to being inside the hose (AP3866284) that is above the pump motor and attached to the drum. How do I get at this part to remove an


Here is a link to my service manual for your Duet that will show you how to access it.
These manuals cost me a lot of money so if you are able to make any donation so that I may ad more manuals to help others, please do so. If you can't afford it no problem and enjoy the manual.

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Whirlpool f28 error code and door lock light


For the F28 error code:
First, check the wiring harness connections to the MCU, the Motor, and the CCU. Make sure all the connections are tight and there are no ground wires off. Then check the connections of the CCU board within the housing.

If the wiring connections are fine then It would be a good idea to order both, as both components have been problematic for the error code F28.
Here is a link to the CCU.
Here is a link to the MCU.

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1 Answer

I have a whirlpool washer & dryer Duet and my washer keeps getting an error code F21 and recently got F28. I had some work done in the laundry area which caused the washer to be moved and then put...


https://www.whirlpool.com/webapp/wcs/stores/servlet/OCManualsLiteratureSearchView?catalogId=10561&langId=-1&storeId=10211&krypto=5QgxQhneFliXuEuX564wSQ%3D%3D&ddkey=http:AjaxMiniWishListView

Above find a link to your Manual and below find a link to a Video which can assist you in fixing the F21 Error Code

The F28 Error Code could Just be a Fluke But it is supposed to mean that there is no water entering so to be sure before running another load be sure hoses are connected and turned on.

Thumbs up if Helpful and Feedback is Appreciated!!!

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I have a wfw8300sw02 washing machine i just replaced the belt and i tried running a cycle and it flashes f28 its almost like no water is filling inside. how or what can i do to fix this


Try to reset the entire board and start all over again. Anytime you fix the machine the machine needs to know that it was worked on and a reset is necessary. Good Luck

Jan 07, 2011 | Whirlpool WFW8300SW

1 Answer

Keeps on coding F21 - we have adjusted the hose several times but still seems to be giving us problems


Hi

Error F21 means F21 error means that the drain time has exceeded 8 minutes; this will turn off the water valves. Error code SD means LONG DRAIN. This error appears when the drain time exceeds 8 minutes and the water valves turn off. After 4 minutes the "Sd" error will be displayed, and then 4 minutes later the F21 error code will be displayed. Press PAUSE/CANCEL two times to clear the display. Please Check the drain hose and make sure it is not plugged or kinked. If the drain hose if fine then unplug the washer and check the electrical connections at the pump and make sure the pump is running. Check the drain pump filter for foreign objects. To access the drain pump and filter remove the front kick panel and trace the drain hose to the bottom of the washer, drain pump would be located there. If you are not able to access it, then replace the back panel as well. Plug in washer or reconnect power. If the issue is still not resolved then you would need to replace the drain pump.
Hope this helps... Please post back if you need more information.


Daniel

Jan 01, 2011 | Kenmore HE2 Plus Front Load Washer

1 Answer

My washer stopped and was flashing F21 (drainage issue) so I called a plumber. He checked the hoses and removed the panel and cleaned the drain trap. It didn't fix the problem it's still won't drain. It...


The SUD message relates to overdose of detergent detected during the Wash Cycle.
This may signify a bad pump, an extra heavy load, excessive detergent or excessive suds.
If too much detergent was used, run the washer through a Rinse/Spin cycle, then a Normal cycle, without adding any detergent. This should clear the unit of the excess detergent.
Check the drain hose and make sure it is not plugged or kinked. this seems to be the reason as to why your unit is not fixed even after trying to solve F21......

F28 is a communication error which usually means there is a connection that has come loose. Removing the top and unpplugging and replugging the connectors in will fix 75% of these codes. If the bottom toe panel is not on it will also give you an F28.
Good luck

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1 Answer

I have a Whirlpool WFW8300SW02 washing machine with persistent "SD" and "F 21" trouble codes. What is going on here and where can I get a copy of the repair manual for my machine?


"F21" is a Long Drain error code. This is an indication that you have an obstruction somewhere in the drainage system. In most cases, this means you probably have a clog in the drain pump. The following link explains:

http://www.fixya.com/support/r1484065-f21_error_code_whirlpool_duet_kenmore

You may have something getting caught in the pump impeller and slowing it down. Included is a follow-on link that explains how to check the drain pump to clean. You may also have to remove the inlet hose that runs from the bottom of the wash tub to the inlet side of the drain pump. Debris can commonly clog in this area as well causing the drain cycle to fail.

NOTE: If these preliminary measures do not correct your problem, you may have to replace the drain pump. It does not take much to damage the pump impeller or motor. Since the error code is generated if the drain cycle exceeds 8 minutes, if the pump is damaged and can't pump at the required volume, the error code will continue to appear until the pump is replaced.

NOTE: The "SUDS" error can commonly occur with the F21 error code as this is can be generated when air is sensed in the drainage system.
If the door won't open it could be jammed due to the program being interrupted.

If you have questions about this repair, or require additional assistance, please let me know. I hope this helps you.

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Error code f35 on my washer


The following list of codes indicates an electronics communication problem with the washer:
Duet HT® washer - F01, F03, F06, F11, F23, F24, F27, F28, F29, F30, F31, F32, F35, F42, F61, F62, F63, F64, F65, F70, F71, and F99
Duet® washer - F05, F07, F09, F10, F11, F13, F14, F15, F21, F22, and FdU
Duet SportTM washer - F01, F11, F23, F24, F27, F28, F29, F30, F31, and F33

To remove the error display, press Pause/Cancel twice.

If Pause/Cancel does not work:
  1. Unplug washer or disconnect power for one minute.
  2. Plug in washer or reconnect power.
  3. Re-select the cycle and press Start.
NOTE: If the error remains on the display, call for service.

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2 Answers

F21 error on a whirlpool frontloading WFW8300


error code f-21 is a simple fix on the front of your washer there is a lower panel that can be removed
with three screws. after removing panel you will see a white plastic piece/plug that you can unscrew
(be prepared for water spillage) remove that plug this is called the coin trap clean out this trap and put back together. this should solve your problem

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