failure mode
FM-14: FM-14 THE BUILT-IN WORK LIGHT DOES NOT ILLUMINATE OR STAYS ON
FM-14 THE BUILT-IN WORK LIGHT DOES NOT ILLUMINATE OR STAYS ON
Diagnostic overview
FM-14 THE BUILT-IN WORK LIGHT DOES NOT ILLUMINATE OR STAYS ON
Likely Root Causes
- Battery or contacts do not supply stable power
- Light lens is blocked by dust or damage
- Trigger signal to the lamp is intermittent
- LED or its lead has failed
Quick Checks
- The work light illuminates with normal trigger use and turns off normally.
Repair Preview
1.
This is a preview of the troubleshooting guidance included in the full repair manual.
Related symptoms
The front work light stays dark during trigger use or remains on abnormally afterward.
The front work light stays dark during trigger use or 1. Center-lock the trigger, remove the battery, and wipe the light window
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.