DeWalt DCN45RNN Original Instructions

15
ENGLISH
TROUBLESHOOTING GUIDE
MANY COMMON PROBLEMS CAN BE SOLVED EASILY BY UTILIZING THE CHARTBELOW.
For more serious or persistent problems, contact your nearest authorised DEWALT repair agent, or contact your DEWALT office at the
address indicated in thismanual.

WARNING: To reduce the risk of serious personal injury, ALWAYS lock off the tool and disconnect battery pack from tool before
allrepairs.
SYMPTOM CAUSE FIX
Motor does not run with
trigger depressed
Trigger lock in locked position Unlock trigger lock.
Tool is stalled, locking the motor from rotating Rotate the stall release lever on the tool and the mechanism will release.
If driver blade does not return, remove battery and manually push driver
blade back to home position.
Tool internal electronics need to be reset Remove battery, wait 3 seconds and reinsert.
Motor stops running after 5 seconds Normal operation, release trigger and redepress.
Terminals are dirty or damaged See authorised DEWALT repair agent.
Damaged internal electronics See authorised DEWALT repair agent.
Damaged trigger See authorised DEWALT repair agent.
Battery is hot Let the battery cool or replace it with a cool pack.
Tool is hot Let the tool cool down before continuing use.
Motor does not run with
contact trip depressed
Trigger lock in locked position Unlock trigger lock.
Tool is stalled, locking the motor from rotating Rotate the stall release lever on the tool and the mechanism will release.
If driver blade does not return, remove battery and manually push driver
blade back to home position.
Bent contact trip See authorised DEWALT repair agent.
Motor stops running after 5 seconds Normal operation, release contact trip and redepress.
Terminals are dirty or damaged See authorised DEWALT repair agent.
Damaged internal electronics See authorised DEWALT repair agent.
Damaged trigger See authorised DEWALT repair agent.
Battery is hot Let the battery cool or replace it with a cool pack.
Tool is hot Let the tool cool down before continuing use.
Tool does not actuate (motor
runs but will not fire)
Low battery charge or damaged battery Check charge level if pack shows state‑of‑charge. Charge or replace
battery pack if necessary.
Jammed nail/drive blade not returned to home
position
Remove battery, clear jammed nail, cycle stall release lever, (push driver
blade up manually if necessary) reinsert battery pack.
Damaged driver/return assembly Replace driver/return assembly. See authorised DEWALT repair agent.
Jammed internal mechanism See authorised DEWALT repair agent.
Damaged internal electronics See authorised DEWALT repair agent.
Motor starts up but generates
a lot of noise
Jammed nail and driver blade is stuck in down
position
Use stall release lever, clear any jammed nails, and return driver blade
manually if necessary.
Damaged driver/return assembly Replace driver/return assembly. See authorised DEWALT repair agent.
Drive blade continues to get
stuck in down position
Jammed nail and driver blade is stuck in down
position
Use stall release lever, clear and jammed nails, and return driver blade
manually if necessary.
Damaged driver/return assembly Replace driver/return assembly. See authorised DEWALT repair agent.
Material and fastener length If the unit continues to stall (forcing the need to rotate the Stall release
lever) choose the appropriate material and fastener length that is not too
rigorous an application.
Debris in nosepiece Clean nose area and watch closely for small pieces of broken nails stuck
in the track.
Tool is not yet run‑in New tools can take 500–1000 nails for parts to mesh and wear in
together. Drive shorter nails during this period if experiencing difficulty
driving nails flush.
Use of incorrect speed If trying to drive longer ring shank nails in soft woods, or driving ring
shank nails into harder materials in speed 1 ‑ adjust speed setting to
position 2.

DeWalt DCN45RNN Specifications

General

Brand	DeWalt
Model	DCN45RNN
Category	Nail Gun
Language	English