failure mode

FM-05: FM-05 TRIGGER STICKS OR SPEED CONTROL IS UNSAFE

Trigger sticks, fails to return, starts unpredictably, or no-load speed surges, causing unsafe speed control.

Diagnostic overview

Trigger sticks, fails to return, starts unpredictably, or no-load speed surges, causing unsafe speed control.

Related symptoms

  • The trigger binds, fails to return, starts unpredictably, or no-load speed surges.

    The trigger binds, fails to return, starts unpredictably, 1. Center lock-off, remove the battery, and stop cycling the trigger.

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