- 08 -
Problem
Tool will not start.
Possible cause
Cord not connected.
No power at outlet.
Fault correction
Tool’s thermal reset breaker
tripped (if equipped).
Tool operates slowly.
Performance
decreases over
time.
Excessive noise or
rattling.
Overheating
Extension cord too long or wire
size too small.
Sandpaper is worn or damaged.
Replace as needed.
Have authorized service center
replace brushes
Carbon brushes worn or damaged.
Internal damage or wear. (Carbon
brushes
or
bearings,
for
example.)
Forcing tool to work too fast.
Accessory misaligned.
Sandpaper is worn or damaged.
Blocked motor housing vents
Motor being strained by long or
small diameter extension cord.
Eliminate use of extension cord. If
an extension cord is needed, use
one with the proper diameter for its
length and load.
Wear ANSI-approved
safety
goggles and NIOSH-approved
dust mask/ respirator while
blowing dust out of motor using
compressed air.
Check and correct accessory
alignment.
Allow tool to work at its own rate.
Replace as needed.
Have authorized service center
service tool.
Eliminate use of extension cord. If
an extension cord is needed, use
shorter/ heavier gauge cord.
Check that cord is plugged in.
Check power at outlet. If outlet is
unpowered, turn off tool and check
circuit breaker. If breaker is
tripped, make sure circuit is right
capacity for tool and circuit has no
other loads
Turn off tool and allow to cool.
Press reset button on tool.
Have authorized service center
service tool.
Internal damage or wear. (Carbon
brushes or switch, for example.)
