Question about Bosch Washing Machines
I've changed the motor brushes, which were def gone. There is only 3 buttons with corresponding lights on this machine so the usual routine for fault code f21 doesn't apply.
Turn knob to 12 o'clock position turn to 6 o'clock position press an hold the spin button turn knob to 7 o'clock while still pressing the spin button let go of the spin button after 5 seconds turn the knob back to 12 o'clock
Posted on Jul 26, 2015
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Posted on Jan 02, 2017
This is typical of a control board problem.
About 60% of the time they can be repaired, but it's easier to replace it than keep testing.
If you are competent at electrical repairs, then read -on, otherwise order a replacement, and have it fitted.
Remove top cover by removing screws at top rear, slide cover rearwards.
Control board is on right at the front.
Test connections - remove and replace all connections, checking for signs of arcing.
Check main wiring loom to motor for integrity and damage.
If no signs of damage, remove control unit board, and examine for arcing or poor contacts, overheated components or damage.
If everything still looks ok, a replacement control board should be fitted and the machine tested.
Hope this helps.
Posted on Jun 11, 2008
SOURCE: f21 fault on Bosch Classixx
Here the reset procedure:
If that does not work, then there is still a problem. F21 indicates that problem can be motor, wiring or electronic control module. Try the reset a couple of times if that does not work at first try.
Posted on Dec 22, 2010
SOURCE: Have a Bosch Maxx Classic
you would not be checking the pump to clear a motor error you would be checking both the motor and the motor control the pump controls the amount of water that leaves the unit and has a seperate function from the motor entirely two totally differnt systems if you have some electical ability you can disconnect the motor and do a bench test on the motor this will allow you to distinguish between which is causing your problem either the motor or the motor control by your testing and cleaning of the pump area you did nothing to alleviate the motor error and that is why the error code remains. If you have any further questions message me back I await your reply Thanks Rick
Posted on Apr 03, 2011
if you cleaned out the pump by removing the center part of it and it still shows f21,either you didn't clear everything out of the pump,after you pull out the center piece stick your finger inside where the impellar is to see if you feel anything rapped around it,if it's clear and still won't drain then you need to buy a new pump and remove the old pump and install the new pump part number 280187 and it's around 120 dollars http://www.searspartsdirect.com/partsdirect/part-model/Maytag-Parts/Washer-Parts/Model-MFW9700SB1/3048/0153200/W0705107/00006?blt=06&prst=&shdMod=
Posted on Dec 10, 2011
1) Test the lid switch must be closed very well, this will NOT start the machine.
2) the start button test for open
3) tight any wires connector
4) see the outlet box from your house is o.k reset the breaker.
5) put some desklamp for to see if working, so go and test the power cord .
6) tight the fuse or c.breaker from control board.
6a) put correct tension in the belt, see for any obstruction mechanical with the clutch and brake see the diagram
7) try it
Posted on Jul 19, 2012
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