symptom
No response when the switch is set to I
With a battery installed and the switch at I, the sander gives no motor sound and the pad does not move.
What this symptom means
With a battery installed and the switch at I, the sander gives no motor sound and the pad does not move.
Likely Root Causes
- Main battery is discharged, damaged, or not latched
- Battery or tool contacts are dirty or damaged
- Switch is not fully at I
- Switch, control, terminal, or motor fault
Quick Checks
- The sander starts steadily at no load when the switch is set to I.
Repair Preview
- Set the switch to O, remove the pack, and prove a known-good charged battery.
- Dry-brush both contact sets without bending or probing the terminals.
- - Slide the known-good pack fully onto the rails until it latches
- - Hold the tool clear of the work and select I
This is a preview of the troubleshooting guidance included in the full repair manual.
Related failure modes
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.
Related symptoms and error codes
Related models
Common symptoms
- Sander stops and restarts with the switch left at I
- On/off switch travel is blocked
- Powered motion continues after the switch is set to O
- Battery will not slide fully onto the tool rails
- Battery seats but will not latch
- Latched battery will not release
- Speed dial will not turn through its range
- Pad speed does not change across the dial range