failure mode
FM-06: FM-06 THE DIRECTION BUTTON STICKS, SELECTS WRONG, OR WILL NOT LOCK OFF
FM-06 THE DIRECTION BUTTON STICKS, SELECTS WRONG, OR WILL NOT LOCK OFF
Diagnostic overview
FM-06 THE DIRECTION BUTTON STICKS, SELECTS WRONG, OR WILL NOT LOCK OFF
Likely Root Causes
- Button is moved while the trigger or chuck is still active
- Dust obstructs one side of the selector slot
- Button, cam, or housing slot is cracked
- Selector is not pushed fully left, center, or right
- Internal switch linkage is bent or failed
Quick Checks
- Soft dry brush; known-good compatible battery.
Related symptoms
The forward/reverse button sticks, commands the wrong rotation, or center does not lock the trigger.
The forward/reverse button sticks, commands the wrong Release the trigger and wait for full chuck stop before moving the FM-06
Included in the full manual
- root cause analysis
- tools needed
- step-by-step repair procedure
- diagrams
- exploded views
- post-repair checks
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