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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.
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.
If the drain time exceeds 8 minutes the water valves turn off. After 4 minutes the “Sd” error will be displayed, then 4 minutes later the F21 error code will be displayed.
Press PAUSE/CANCEL two times to clear.
1. Check the drain hose and make sure it is not plugged or kinked. 2. Unplug washer or disconnect power. 3. Check the electrical connections at the pump and make sure the pump is running. 4. Check the drain pump filter for foreign objects. 5. Plug in washer or reconnect power. 5. If the above does not correct the problem, go to step 7. 6. Unplug washer or disconnect power. 7. Replace the pump.
Alternative Procedure: If the machine cannot be forced to its diagnostic mode then:
1.Disconnect the washer from the power supply and water supply. 2.Remove the top panel by taking out the three screws in the back of the washer. The pressure switch is right on top. 3.Remove the Molex connector from the water level switch / pressure switch. Refer to the picture below. 4.Reconnect the power supply but not the water supply. 5.Power the machine. The machine will enter diagnostic mode. 6.Power off the machine. 7.Replace the water level switch / pressure switch. 8.Reconnect the water supply. 9. Power on the machine it will work without error
In most cases this is simply caused by a clogged drain pump and all that is required is a good cleaning. Read through the instructions provided in the link on how to do this. Make sure the washer is unplugged while servicing any of the internal components.
If the problem persists, you may have a drain pump that is malfunctioning or is damaged. The manufacturer recommends replacing the pump if this is the case.
Let me know if you have any questions. I hope this helps you.
An F21 error code indicate drain problem. Might you want to inspect/clean the drain system from the filter to catch basin to impeller, pump/valve and drain hose. To do this, the bottom/kick panel ahs to be removed. A bit of a messy job so pls be prepared with paper towels and other absorbent materials.
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