Bosch Table sawmodel #4000
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Maytag Series 4000
Receiving error f21 have cleaned out pump and still getting code
Posted August 15, 2012
Yadira B, August 15, 2012
sorry, to hear your having problems with your maytag 4000. i would suggest that you provide the model number of your product so your expert will be able to provide you the best possible answer. continue this existing thread. just click on the reply box below and provide that information.
Mary, August 15, 2012
mhwe450ww00 model #
Joey S, August 17, 2012
thank you for your question and i understand your concern.
based on the fault code "f21" if the drain pump is clean of debris and the drain pump is operating and pumping the water out, the "f21" could be displaying because the water level pressure switch is not detecting the water has been pumped out. if the pressure switch air hose is restricted; it could possibly cause the "f21" to display because air is trapped in the air hose or where the air hose connects to the air trap. the air trap is located at the rear of the tub near the bottom. if the small port the air hose is connected to is restricted, it could cause an intermittent "f21" fault code.
the "f21" will normally display if the drain time exceeds eight minutes and the drain pump will stop operating. pressing pause/cancel should turn the drain pump back on and drain providing the there are not restrictions between the tub hose and drain pump. you did not mention if the drain pump will operate or not. we need to make sure the drain pump is actually running and not just making a humming noise.
here is a list of the possible causes and procedures:
check the things i have covered here and if i may be of further assistance as more details become available, please reply to this post.