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F21 will not reset

I have replaced the brushes and the machine still will not start

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4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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ginko
  • 19396 Answers

SOURCE: f21 fault on Bosch Classixx

Hi.

Here the reset procedure:

  1. Ensure that there is no water in the washer.
  2. Turn the timer knob knob to OFF position.
  3. Close the washer door.
  4. Turn the timer knob to 6 o clock and wait until you see the start/pause button flashing.
  5. Press and hold SPIN button.
  6. Advance the timer knob to next part of cycle (7 o clock position).
  7. Wait 5 seconds.
  8. Leave the button.
  9. Set the timer knob to off position.
  10. Trip circuit breaker for two minutes and restart if the reset did not work.

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.

Regards.

Ginko.

Posted on Dec 22, 2010

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  • 196 Answers

SOURCE: Motor brushes replaced but fault

F21 means motor or control board fault. Usually its the motor. If you have replaced the brushes and it doesn't work then its most likely the motor is faulty. Not a cheap fix.

Posted on Mar 08, 2011

jonsnell4
  • 23154 Answers

SOURCE: Bosch wae24363gb/05 F21 Fault DEAD?

Repair the control board.

Posted on Mar 03, 2014

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Fault F21 Dead Washing Machine?


If the display is now dead, the brushes will not make it work. Replace or repair the control board.

Mar 03, 2014 | Water Heaters

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Bosch wae2446bgb/10 With. F21 fault code. Manual said motor fault so brushes have been replaced. Phoned Bosch and said to hold the start button for seven seconds to reset the machine, but I dosnt seem...


Have you unplugged it, then plugged it back in? Also, try holding the start button as suggested, only do so until (hopefully) it reacts to doing so. If not, unplug and let sit for 30-60 seconds, then plug in and power up. If it still persists, contact Bosch again and let them know its still doing it, and what you have tried.

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Reset pcb bosch classixx 1200 express


There is no reset as such, if the motor shorted when the motor brushes went there is a good chance that it blew the motor tracking or relay on the board. Sometime this is indicated by F20 or F21. Unfortunately this will be a new board. You could try to run a motor test as follows:
Hold in the start button while turning the dial one click to the left (30 easycare) wait until the display shows 888 or two indicators light up next to dial.
Release start and turn dial to 60 cotton (WITHOUT GOING THRO THE OFF).
Press start
This should start a motor test
slow turn one way, slow turn the other, pump on then up to full spin.
(some machines will show the rpm on the display).
If this does not work, you probably need to change the module aswell.
Best of luck

Mar 20, 2013 | Bosch Classixx WFO 2866 Front Load Washer

1 Answer

F21 has appeared on my Bosch classixx 6 1200 model


F21 normally indicates a fault with the motor or the main control board. It could be the motor brushes need changing.
If you've changed the brushes you now need to erase the stored errors and try the machine again.
.
Turn the knob to off.
Close the door.
Turn the knob to 6 o'clock position.
Wait 2 seconds.
The start/pause should begin flashing.
Press and hold the spin button. (the spin button is the one that changes the spin speed, it may be marked "RPM")
Turn the knob to 7 o'clock position.
Wait 2 seconds.
Release the button.
Turn the knob to off.
.
This should erase the error code and get you running again.
.
If the error code returns, you have a problem with the motor, wiring or main control.
If the machine won't go into diagnostics to erase the error code, it would suggest a faulty control board.
.
Try it several times to see if you get it reset.
.
Note, If the start button doesn't flash, just carry on trying to erase the codes.

Dec 22, 2012 | Bosch Classixx WFL 2066 Front Load Washer

1 Answer

F21 what can I do? Please please


Hi

F21 error in your Bosch washer relates to a motor or a control board fault. This can be reset and to reset it turn the appliance knob to the off or reset position (12 o'clock), turn the knob to the 6 o'clock and then press and hold the spin button, then while holding that button turn the knob to 7 o'clock position, continue holding spin button for 15 seconds and then turn the knob to off. After a minute turn it back on, if the error code is still there then it means that the motor or brushes in the motor should be replaced, though it is always better to replace the motor assembly completely. Hope this helps...please post back for further assistance.

Daniel

Aug 04, 2011 | Bosch Logixx WAS2446 Front Load Washer

1 Answer

Motor brushes replaced but fault F21 still indicated in the display panel. How do I get the machine to work ?


F21 means motor or control board fault. Usually its the motor. If you have replaced the brushes and it doesn't work then its most likely the motor is faulty. Not a cheap fix.

Mar 08, 2011 | Bosch Classixx WFL 2066 Front Load Washer

1 Answer

F 21 appears on panel


Hi, This sounds like the motor brushes need replacing, but its possible that the machines control circuitry has been upset by mains surges or spikes, so try the following to reset the machine first....

1. Turn the appliance knob to the off or reset position, (12 o'clock)

2. Turn the knob to the 6 o'clock position.

3. Press and hold the spin button & while holding it, turn the knob to the 7 o'clock position, keep holding the spin button and then release it after about 5 seconds, now turn the appliance knob back to off.


Hopefully when you turn the machine back on it will have reset the error and you can continue to use the machine.

If the machine goes back to F21 after a program has been started then it is most likely the motor brushes need replacing or you have a faulty motor drive module.

Hope this helps

Midge.

Feb 13, 2011 | Bosch Classixx WFL 2066 Front Load Washer

2 Answers

Bosch classixx 6 1400 machine stopped working during cycle f21 on display


F21 relates to a motor or control board fault.

However, it is also caused by spikes in the mains and can be spurious.


To reset it.

Turn the appliance knob to the off or reset position, 12 o'clock.

Turn the knob to the 6 o'clock position.

Press and hold the spin button.

While holding it, turn the knob to the 7 o'clock position.

Continue holding the spin button for about 5 seconds.

Release the button.

Turn the knob to off.

When your turn it back on it should have cleared the error code

Nov 27, 2010 | Bosch Washing Machines

2 Answers

Error code F 21


I have a Bosch Classixx 6 1200 express washing machine showing error code F21 on the display, what is it?

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