The F21 code is a ' drain issue ' --- if you remove the bottom panel from the machine you will see the water pump right there,, just in front of the pump you will see a clean out area,, unscrew counter clockwise and remove the catch screen,,, it most likely has a few things in it ,, clean out - re-install and start the cycle. and the F21 code should be gone AND washer is back up and running.
SOURCE: getting an error message on
F 21 means slow drain remove lower kick plate couples screws at bottom//you will see the drain pump there is a clean out at the front of pump/ turn that out counter clock wise that is a coin collector but many other objects get in it to/ remove items and reverse to put unit back together....
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SOURCE: Whirlpool Duet Sport HT front load washer keeps having F21 Error
remove the lower access panel (3 screws along the bottom of unit) behind htere you will see the pump and an access to clean the pump filter, probably filled with assorted debris. be aware when you unscrew there will be water behind it,
SOURCE: Whirlpool duet front load washer flashes F35 shortly after start
Sud= The unit has sensed there is too many suds in the unit it will
flush and pump out for 5 min and restart on its own..This is caused by
too much soap use..
From the book :
SUD Code=
If too much detergent was used:
—Run the unit through a Rinse/Spin cycle.
—Run a Normal cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged
or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump,
pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic test or any
cycle.
SOURCE: whirlpool duet will not drain, F21 error code
YOUR "DRAIN MOTOR PUMP" is clogged with all that rubber particules, if your handy with tools , you can fix this one , open the washer , locate the MOTOR PUMP , (just follow where the drain hose is connected), remove , inspect and clean all the debris and lints and stuff collected , replaced and youre good to go , AJ
SOURCE: F21 Error code flashing
Plug off the wall first. The filter on your pump is probably clogged with lint and stuff. You have to remove the bottom front panel, 3 torx screws underneath. The panel will drop and come off. Drain off the excess water from the drain pipe you see. The white filter cover is right in front. Get yourself a good plastic
On some models the filter is located ‘inside’ the big hose from the bottom of the tub. This takes more time to clean.
To manually unlock the door lock system, perform the following steps.
1. Unplug the power cord from the outlet.
2. Remove the lower kick panel.
3. Reach up along the inside of the front panel and locate the bottom of the door latch assembly.
4. Located on the bottom of the door latch assembly is a teardrop shaped tab. Gently pull the tab down approximately quarter inch, or until a click is heard.
5. The door may now be manually opened.
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