mobile number +91 9500611963


  • facebook
  • instagram
  • twitter
  • youtube
  • pinterest

F21 error in siemens washing machine

If you turn on the wash, and the drum of the Siemens washing machine does not spin or rotates unevenly, the F21 code will light up on the display.

An error is displayed when:

  • There was a short circuit of the triac,
  • The reverse relay is broken,
  • The tach generator has failed.

To restore the operation of the device, you need to repair the mechanism yourself or call the masters from the service center.

Self repair washing machine

To reset the F21 error, do the following:

  • Turn off the device for 15 minutes from the electrical network and turn it on again, a temporary failure may have occurred and after a reboot the program will be restored,
  • Inspect the tach generator, the faulty part must be replaced,
  • Check the engine if it is out of order, repair or install a new one,
  • Carry out diagnostics of the electronic control unit, if necessary, install a new electronic unit.

All work related to the electronics of washing machines is best left to professionals. They will repair and replace all controls quickly and with a guarantee.

If you have any questions or want to call the mechanic, call us (order a call back).