Bosch PROFACTOR GNB18V-12 Operating Instructions Manual page 26

Trouble
Nailer does not operate,
No actuation occurs
Fastener jammed in
Nosepiece
or
Nosepiece remains in
pressed position
Underdriven fasteners
Overdriven fasteners
Fasteners bend or break
Fasteners do not hold in steel
Fastener failure rate is too high
Fasteners do not slide
into magazine
26
1605A001CD GNB18V-12 202301.indd 26
Troubleshooting page heading
Cause
No battery inserted, battery discharged
Battery and tool temperature too low
Nailer not switched on
Sequential operation has not been
conducted correctly
Trigger Lock in locked position
Dry Fire Lock Out activated, only two
nails left in collated magazine
Debris, dirt, or jammed nail,
in Nosepiece
Not enough setting energy
Fastener is too long
Work surface too hard
Too much setting energy
Fastener is too short
Work surface too soft
Fastener is too long
Work surface too hard
Nailer not perpendicular to work surface
Steel work piece too thin
Work surface too hard
Driver blade is worn
Dust or debris in magazine
Action
Insert charged battery
Allow battery and tool to warm up
sufficiently to operating ambient
temperature
Press ON/OFF button for 1.5 seconds
See "Nailer Actuation" section
Press Trigger Lock to unlock position
Insert nails into collated magazine
See "Jam Clearing" section
Adjust Depth Setting Switch to
increase drive depth
Select shorter nail per "Fastener
Selection" table.
Use different fastening method
Adjust Depth Setting Switch to
decrease drive depth
Select longer nail per "Fastener
Selection" table
Use different fastening method
Select shorter nail per "Fastener
Selection" table
Use different fastening method
See "Nailer Actuation" section
Use different fastening method
Use different fastening method
Take the nailer to an authorized
service center
See "Jam Clearing" section
1/9/23 2:07 PM