F21 (or E21) normally indicates a fault with the motor or the main control board.
Try erasing the stored codes first, in case it's a spurious fault
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.
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 (most likely carbon brushes), 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.
If the start button doesn't flash, just carry on trying to erase the codes.
SOURCE: bosch washing machine error code
I've had the same problem, when we had a power cut I opened the door and after that I could only got F21 flashing! ,I googled for the answer and this WORKED:
Turn programme switch to 6 o clock,hold RPM button turn switch to spin, release RPM button
SOURCE: bosch wae24363 washing machine, coming up with f17 error code please help
I had this same message last week. It is to do with the water intake (i.e. the water coming in to the back of the machine). If you have checked that the hose isn't trapped or kinked, unscrewed it and checked the filters at each end for blockages (rinse out if necessary), and you still get the F17 message, it may be because your water pressure is too low, in which case you need to contact your landlord (if you rent) or thames water if the problem is external (especially if there are any works going on near your house). Hope this helps!
SOURCE: sud message Bosch washing machine
ur using too much soap rinse and spin and use less soapwhen u wash
Testimonial: "thanks-- how do you know how much soap is enough?"
SOURCE: My Bosch washing machine (logixx
F37 is because of operating the unit below specified temperatures.
Pressing the temperature button twice shows a snowflake and sets a defrost function.
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SOURCE: I have an error code
Hello there
Normally this is a drainage problem code
Unplug the machine and wait for 30 min
During this time Remove the cover on the front bottom right corner or the front cover at the bottom , use the small hose that is attached to the pump to
drain the water, from the pump then unscrew the large drain cover and remove the
blockage from the drain pump. and any additional hoses then reattach the hoses and then plug in after the 30 minutes is up then press the cancel button and test ...Test by pouring 1L water into section II
in the top and setting the machine to 'drain'. it should beging to drain
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