failure mode

FM-01: FM-01 TOOL IS COMPLETELY DEAD - NO MOTOR RESPONSE

The tool is completely dead with no motor response when the trigger is pressed, despite a correctly fitted battery.

Diagnostic overview

The tool is completely dead with no motor response when the trigger is pressed, despite a correctly fitted battery.

Likely Root Causes

  • Battery is discharged, incompatible, or not fully latched
  • External battery contacts or rails are dirty or damaged
  • Lock-off/trigger is not enabling the switch
  • Internal controller, wiring, or motor fault

Quick Checks

  1. The motor starts every time with the proven pack and reaches steady no-load speed.

Repair Preview

Step-by-step instructions to restore motor function when the saw is dead despite correct battery installation.

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

Common Fixes

  • Known-good compatible Bosch or AMPShare battery
  • Motor, wiring, or electronics

Related symptoms

  • The correct battery is fitted, but pressing a lock-off button and the trigger produces no motor response.

    The correct battery is fitted, but pressing a lock-off button and 1. Set the lock-off to rest, remove the battery, and screen the pack and tool for heat,

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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