Question about Whirlpool Duet 3.8 cu. ft. Front Load Washer

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F 21 code on a Whirlpool Duet

Will throw F21 code and sometimes sud message. Usually have to drain spin cycle to finish load. Wife real unhappy.

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"F21" is a Long Drain error. This is usually attributed to either a malfunction with the drain pump, or a drain pump clog. The following link explains:

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

In most cases, this is a simple clog in the drain pump reservoir that can easily be remedied by cleaning out the drain pump. Read through the link thoroughly and let me know if you have questions. If anything has been clogged in the impeller for any significant period of time, it can cause irreparable damage to the pump motor and/or impeller. Since the drain pump is monitored by the VOLUME it pumps, a damaged motor and/or impeller can REDUCE the pump volume and continue to generate errors. So, you may have a pump that "appears" to be pumping, but may not be pumping at the proper volume. This is a worst-case scenario, of course. If cleaning the drain pump does not correct the problem, the manufacturer recommends replacing it. If it comes to this, post back and let me know. I can give you step-by-step instructions on how to replace the pump and where to purchase a replacement. I hope this helps you.

Posted on Feb 10, 2009

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2 Answers

Error message SUD and F21 even after unclogging the filter


Push the pause/cancel button twice to clear your message. Then run through a rinse/spin cycle. Next try a normal load without any detergent. SUDS is usually from too much detergent. If this fails, checked the hose for kinks. Check connections and if all that fails, you will probably have to replace the pump. Good Luck!

Feb 04, 2014 | Maytag MAH6700AWW Neptune Front-Load...

1 Answer

Whirlpool Duet Sport F21, F01, SD


Drain pump may be clogged or need to be replaced may run but not pump blade stripped in pump

Apr 28, 2017 | Whirlpool Duet 3.8 cu. ft. Front Load...

1 Answer

F-21 code several times. We clean the pump. Start again the rinse/drain and spin cicle, and now present sd code and later f-21 code. What we need to do.


I have the manual for this machine. Under "Code 21" it says the following:
"F21" (Drain Problem) Select STOP twice to cancel the cycle. Unplug washer or disconnect power. Check the following: Is the drain hose kinked? Is the drain hose frozen? Is the drain hose clogged? Is the drain hose more than 96" (2.4 m) above the floor? Plug in washer or reconnect power. Re-select cycle and press START. If the problem remains, call for service.
For "SUDS" code, the following:
"SUD" (Suds Routine) When excessive suds are detected, a suds routine automatically starts. This routine removes extra suds and assures proper rinsing of your garments. "SUD" is displayed during rinsing to inform you that Suds Routine was activated. Use only HE (High Efficiency) detergents.
Here is some more information that may help you as well:
"F" Codes other than F20, F21 and F22 Select STOP twice to cancel the cycle. Select DRAIN & SPIN if there is excessive water in the washer. Re-select cycle and press START. If the problem remains, call for service.
I hope this is of some help to you, Please rate and comment, Thank You
Joe

Sep 04, 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

Aug 17, 2010 | Whirlpool Duet GHW9150P Front Load Washer

2 Answers

F21 code flashes


Lets see what an F-21 is shall we? F21 Long drain Possible cause: Clogged filter, clogged/failed pump, suds detected by control.3a5b94a.jpgb4a897e.jpg55f108d.jpg

Jun 19, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Whirlpool duet washer flashing sud then f21 ????????


The "SUD" error is in direct relationship the other error code. "F21" is a Long Drain error. The following link explains:

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

If something is preventing water from pumping through the drain pump, you will often get a "SUD" error as air is developed in the pump. Make sure you double check all the drain lines as well.

If you have questions, or require additional assistance, please let me know before you rate the solution. I hope this helps you.

Jan 28, 2009 | Whirlpool Duet GHW9150P Front Load Washer

2 Answers

Display panel reads SUDS


The SUDS 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. Good luck!

Oct 28, 2006 | Whirlpool Duet 3.8 cu. ft. Front Load...

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