The Saw Is Completely Dead - No Worklight And No Motor Response

A charged-looking battery is installed and the trigger is pulled, but the worklight never comes on and the blade does not move.

• FLEXVOLT battery is discharged, protected, damaged, or not fully seated
• Battery rails or accessible contacts are dirty, wet, burned, or damaged
• Trigger lock-off is not being released
• Trigger switch, electronic module, motor, or internal power path has failed

1. With a proven pack installed, the worklight responds to trigger operation and the blade reaches normal no-load speed.

1. Set the saw on its side with the trigger released, remove the battery, and keep the blade clear of people and material.
2. - Inspect the pack, rails, latch, and accessible contacts for cracks, swelling, liquid, scorching, unusual heat, or debris - route any battery hazard to FM-06
3. Charge the pack with its designated charger, clean only dry accessible interfaces, and install a known-good fully charged compatible FLEXVOLT pack until it
4. - Press the lock-off deliberately and pull the trigger once with the blade clear of all material - if the worklight and motor both remain absent, keep the hou

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

• FM-01: Fm Dcs578 01

• 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.