Troubleshooting

Problem		Possible Causes		Likely Solutions
Tool will not start.	1.	Cord not connected.	1.	Check that cord is plugged in.
	2.	No power at outlet.	2.	Check power at outlet. If outlet is
				unpowered, disengage the trigger and
				check circuit breaker. If breaker is
				tripped, make sure circuit is right capacity
				for tool and circuit has no other loads.
	3.	Tool’s thermal reset breaker	3.	Disengage the trigger and allow tool to
		tripped (if equipped).		cool. Press reset button on tool.
	4.	Internal damage or wear.	4.	Have technician service tool.
		(Carbon brushes or switch, for
		example.)
Tool operates slowly. Extension cord too long or wire size			Eliminate use of extension cord. If an
	too small.		extension cord is needed, use shorter/
			heavier gauge cord. See Extension Cords
			in GROUNDING section.
Performance	1.	Accessory dull or damaged.	1.	Keep cutting accessories sharp.
decreases over time.				Replace as needed.
	2.	Carbon brushes worn or	2.	Have qualified technician replace
		damaged.		brushes.
Excessive noise or	Internal damage or wear. (Carbon		Have technician service tool.
rattling.	brushes or bearings, for example.)
Drill bit slips in chuck	1.	Jaws are loose.	1.	Tighten chuck .
	2.	Bit is jammed in work piece.	2.	Tighten chuck, then operate tool in
				reverse to back bit out of work piece.
Overheating.	1.	Forcing tool to work too fast.	1.	Allow tool to work at its own rate.
	2.	Accessory dull, damaged, or	2.	Keep cutting accessories sharp.
		bent.		Replace as needed.

3.Blocked motor housing vents. 3. Wear ANSI-approved safety goggles and NIOSH-approved dust mask/respirator while blowing dust out of motor using compressed air.

4. Motor being strained by long or	4. Eliminate use of extension cord. If
small diameter extension cord.	an extension cord is needed, use one
	with the proper diameter for its length
	and load. See Extension Cords in
	GROUNDING section.

Follow all safety precautions whenever diagnosing or servicing the tool. Disconnect power supply before service.

SKU 3273

For technical questions, please call 1-800-444-3353.

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Troubleshooting

Problem

Possible Causes

Likely Solutions