failure mode

FM-01: FM-01 NO WORKLIGHT OR MOTOR RESPONSE

No worklight or motor response when the trigger is pressed, indicating a complete power failure.

Diagnostic overview

No worklight or motor response when the trigger is pressed, indicating a complete power failure.

Likely Root Causes

  • Pack is discharged, damaged, or not fully latched
  • Direction button remains in center lock
  • Rails or terminals are dirty, bent, or damaged
  • Tool power, switch, brush, motor, or wiring path is open

Quick Checks

  1. A sound pack seats securely and trigger use produces both worklight and motor response.

Repair Preview

  1. 13
  2. 1.

This is a preview of the troubleshooting guidance included in the full repair manual.

Common Fixes

  • Known-good charged compatible pack

Related symptoms

  • With a charged pack installed and direction selected, the trigger produces no light, sound, or anvil movement.

    With a charged pack installed and direction selected, 1. Release trigger; center the control; remove the pack and screen for heat,

  • NO WORKLIGHT OR MOTOR RESPONSE

    FM-01 NO WORKLIGHT OR MOTOR RESPONSE FM-08 BATTERY WILL NOT RELEASE FROM THE TOOL

Included in the full manual

  • root cause analysis
  • tools needed
  • step-by-step repair procedure
  • diagrams
  • exploded views
  • post-repair checks

Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.

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