Troubleshooting

The table below shows the most common troubleshooting procedures. Note that some actions must only be done by authorized workshops or qualified service technicians.

Problem	Reason	Action
The screwdriver does not run.	The power adapter is not outputting power.	Turn on the relay inside the screwdriver to measure the output voltage. Make sure that the DC voltage is: Terminals 5P-5P and 6P-6P: needle 1: "-" potential needle 4: "+" potential. Terminal 3P-3P: needle 1: "+" potential needle 3: "-" potential. If the screwdriver has a 6-pin output design, needle 3 and needle 5 should be conductive.
	The connection wire plug 3P-3P, 5P-5P or 6P-6P is broken.	Replace the connection wire plug with a new connection wire or with a new plug.
	The forward/reverse button is not working properly and no click is heard when the trigger is pressed.	Replace the trigger.
	Possible damage on the electric braking system of the power adapter.	Contact our authorized workshops or qualified service technicians to perform the repair.
The screwdriver is not rotating normally or the motor runs intermittently during forward operation.	The power adapter has a protective circuit and power is only supplied normally from 3 to 5 seconds after the current flow begins.	Operate the tool in reverse mode or rotate the anvil 90 degrees until a click is heard, then operate the tool in forward mode.
The bit falls out easily.	The bit does not match the specifications.	Change the bit to one matching the specifications.
The bit falls out easily.	The bit is not inserted correctly.	Remove the bit and reinsert it tightly.
The bit wobbles.	The bit is not inserted correctly.	Remove the bit, rotate it 60 or 180 degrees and reinsert it tightly.
The screwdriver does not stop when the selected torque is reached.	An excessive torque setting can strip the screw threads, as a result, the clutch does not activate.	Lower the torque to a level that does not cause stripping.
	Differences in size between the bit and the screw slot lengths can cause slopping.	Change the bit to a suitable one.
	Possible damage on the electric braking system or on the sensor switch of the power adapter.	Contact our authorized workshops or qualified service technicians to perform the repair.
The screwdriver is overloaded.	The handle is overheated or the revolutions plunge rapidly while fastening.	Change the torque of the screwdriver to a higher level or reduce the fastening frequency to prolong the life span of the screwdriver.