Rectifying Faults

Problem	Cause	Corrective measure
The power tool is not ready for operation.	The battery is discharged or defective.	Fully recharge the battery or replace it.
	The battery is not properly inserted.	Make sure that the battery is firmly engaged in the handle.
	The battery temperature is too high or too low.	Wait until the battery has reached the optimal operating temperature again.
	The battery contacts, motor or solenoid are dirty or defective.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
	The magazine (14) is empty.	Refill the magazine see Loading the magazine (see figures A1–A4).
	The discharge lock-off (2) is bent.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
	The electronic system is defective.	Contact an authorised Bosch after-sales service centre.
	The user interface (10) is defective.	Contact an authorised Bosch after-sales service centre.
The power tool is ready for operation, but no nails are discharged.	The following components may be faulty: Trigger (6) Driver blade Motor or drive belt Electronics Rubber bands	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
	Foreign objects have accumulated in the shot mechanism.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
	Foreign objects have accumulated in the outlet (18) or in the magazine (14).	Clean the outlet (18) or the magazine (14).
	A nail is jammed in the shot duct.	Clear the jam see Clearing jams (see figures E1–E2).
	The magazine slider (15) is defective.	Clean the magazine slider (15) as required and make sure that the magazine (14) is not contaminated.
	The spring of the magazine slider is too weak or defective.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
	The fasteners being used are not ‌approved.	Use only original accessories. Only the fasteners (nails, staples, etc.) specified in the "Technical Data" table may be used.
	The magazine (14) is empty.	Refill the magazine see Loading the magazine (see figures A1–A4).
	The fasteners have been pressed in the wrong order.	Perform the discharging procedure again, observing the correct order of pressing when doing so. GNH 18V-64-2 M, GNH 18V-64 MD: Change the actuation mode via the user interface.
The nails are driven in too deep.	The depth stop is set too deep.	Adjust the depth stop to the required depth see Adjusting the depth stop (see figure D).
The nails are driven in too deep.	The buffer is worn.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
The nails are not driven in deep enough.	The battery is discharged or defective.	Fully recharge the battery or replace it.
	The fasteners are too long.	Use only original accessories. Only the fasteners (nails, staples, etc.) specified in the "Technical Data" table may be used.
	The depth stop is set too high.	Adjust the depth stop to the required depth see Adjusting the depth stop (see figure D).
The power tool skips nails or has a cycle feed that is too large.	The fasteners being used are not ‌approved.	Use only original accessories. Only the fasteners (nails, staples, etc.) specified in the "Technical Data" table may be used.
	The spring of the magazine slider is too weak or defective.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
Nails are frequently jamming in the shot duct.	The fasteners being used are not ‌approved.	Use only original accessories. Only the fasteners (nails, staples, etc.) specified in the "Technical Data" table may be used.
		Contact an authorised Bosch after-sales service centre.
	The nails are old, the adhesive between the nails has lost its retention force.	Use a new nail strip
The driven nails are bent.	The driver blade is damaged.	Contact an authorised Bosch after-sales service centre. Have the component replaced there.
The driven nails are bent.	The nailer is being used on a material that is not permitted (e.g. concrete, stone).	Only use the nailer on permitted materials see Intended Use.