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Troubleshooting
Problem/Symptom Probable Cause Corrective Action
Tool will not start or run slowly No electrical power Ensure tool is plugged in, check
power supply (fuse)
Trigger switch is defective Replace or return to Senco autho-
rized service centre for repair
Motor is defective
Tool will not fully drive fastener Bit is worn or incorrect bit installed Replace bit
Power capabilities of the tool have
been exceeded
Discontinue use for that applica-
tion
Tool is in reverse Switch tool to forward
Depth of drive not set properly See p. #8
Tool does not advance fastener Screw length/nosepiece position is
improperly set
See p. #9
Return spring is weak or broken Replace or return to authorized
service centre for repair
Defective collation material Use Senco branded fasteners for
optimum performance
Defective slide body Replace or return to authorized
service centre for repair
Screw strip is jammed in guide
track
Ensure strip slides freely in guide
track
Screws “kick out” or misdrive
during use
Screw length/nosepiece position is
improperly set
See p. #9
Incorrect bit installed Ensure correct bit type and length
are installed
Defective or damaged feed system Return to Senco or Authorized
service centre for repair
Bit will not install Bit not properly inserted into drive
shaft
See p. #8
Clutch teeth not aligned Pulse trigger while holding back
release button
Not a Senco bit Use only the appropriate Senco bit
Bit will not release Not a Senco bit Use only the appropriate Senco bit
Clutch teeth not aligned Pulse trigger while holding back
release button
Bit slips off screw or screw is
driven at an angle
Tool slid forward during drive Hold tool firmly while driving
Bit is worn or broken Replace bit
Nosepiece is worn or damaged Replace or return to Senco autho-
rized service centre for repair
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