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Bosch GST90BE Jigsaw Speed Control Board Replacement

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Bosch GST90BE Jigsaw Speed Control Board Replacement, Diagnosis.: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
Diagnosis.
  • There are 4 main types of electrical problem with a Power tool, Cable, Motor, Switch or Speed control.

  • The cable and switch can be easily checked out with a meter, as can the motor.

  • If all of these seem OK, then the speed control PCB may have failed. When the board fails, the drill just does not work at all.

  • Before replacing the board, it is worth blowing some compressed air through the speed Knob, as these can get full of dust and that will stop the saw working.

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