The Motor Continues To Run After The Trigger Is Released

The powered motor sound and driven blade rotation continue after the operator fully releases the trigger.

• Trigger is physically jammed by debris or housing damage
• Switch contacts or electronic control are stuck on
• Lock-off or trigger mechanism is broken or modified
• Liquid or internal damage has created uncommanded operation

1. The repaired saw turns off immediately at the motor command when the trigger is released and cannot start without deliberate lock-off operation.

1. Keep both hands controlling the saw, hold the shoe clear of people and loose material, and remove the battery only if it can be done without approaching th
2. Once power is removed, place the saw on its side in a clear area and do not reinstall any battery.
3. - Inspect only the external trigger and housing for obvious debris, cracks, liquid, scorching, or a control that does not return - do not open or lubricate th
4. Have the complete saw repaired by an authorized service center before any powered reuse. This is a terminal stop-use route. Use FM-14 as well for liquid, s

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

• FM-09: Fm Dcs578 09

• 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.