Is there water in the machine? Is it actually draining? If you select spin and the water drains but the error still occurs it may be the pressure switch. The pressure switch will be stuck on full so the unit says it has taken too long to drain F21. If it doesn't actually drain and you have checked the pipes( both from pump to outlet drain AND pump to tub of machine) then it is likely the drain pump itself and will need to be replaced.
SOURCE: Kenmore Elite HE3T - F21 Error and SUD error
I don't just got done checking and sure enough it was filled with socks, rocks, and small debris. I don't know yet if it fixed it but will know in a few hours. In any case, these items could not have been good. First, try to make sure all water is out. Run on spin cycle for 10 minutes, be prepared for about 4 to 6 cups of water coming out.
the fix: You should always unplug for safety!
There are three screws at the very bottom of washer. You will need and extension and a star tip. They are on good and tight so I used a cordless drill and extension. I'm sorry I can't tell you which star tip I used. I bought a little security kit from harbor freight that has all these tips and one worked. Their is a white canister that has one hose in and another hose out. Just unscrew slowley and clean if dirty. You might be as surprised as I was if you find any junk.
Good Luck
SOURCE: getting f21 error on my front loading 3000 series
F21 is too long to drain:: (more than 4 mins) Check your drain hose outflow into a couple of 5 gal buckets it should flow pretty fast. If not, there is both a suds sensor and the water level pressure switch that can be causing the problem. Since you do not have SUDS showing on your control panel I am assuming the suds sensor is fine. The water pressure switch itself can cause the problem even if you hear audible clicks when testing with an external hose. A clogged drain pump strainer can do the same thing. Lastly... the obvious... is the drain hose kinked???? Good luck and hope this helps.
SOURCE: We have a front loading 3000 series Maytag washer.
Just had this problem on Sunday. For a FRONT loading 3000 series, remove the front bottom panel (three screws - lay on floor and you can see them). There is a plastic can to the left of the pump. The front cover to this can screws on and off. Be prepared for water to gush out and unscrew the cover to the can. There is a filter/trap in there. Clean this out and it should solve the problem. Not sure why the manual does not cover this.
SOURCE: HE2 Plus front load washer keeps showing F21 error
Check for the drain hoses(both sides of the pump) and check for a blockage,then check the pump for blockage,there should be 4 impellers on this pump and they can get broken off by coins and debris. This solution will fix your problem.
SOURCE: my MAYTAG washer 9000 series
F 21 means slow drain if you can here the pump that means something pluging it. remove lower kick plate . the pump will be there remove cleanout counter clockwise turn .put back together.. hope this helps...good luck
Hello & Welcome to FixYa
F21 error is displayed when the washer is unable
to drain, press PAUSE/CANCEL button twice to clear the display. After this
please check the drain hose and drain pump filter for any blockages and make
sure it is not clogged with foreign particles. You can also check the drain
pump to verify that its working. Please get back to me if you have any other
questions.
Kevin
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