MACHINE TROUBLESHOOTING
MB2000I 980071 11/15/02
4-1
PROBLEM CAUSE SOLUTION
Circuit breaker tripped in
building.
Check and reset
Power switch failure Test switch for continuity
and replace if necessary.
Tripped circuit breaker Reset
Faulty power cord Replace
Machine will not run
Fuse in motor is blown Replace
CAUTION: To reduce the
risk of electrical shock,
unplug the machine before
opening fuse holder.
Fuse will only open under
extreme conditions.
Investigate cause before
replacing.
Equipment not grounded Follow grounding
instructions exactly.
Receptacle not grounded Have an electrician inspect
building’s wiring.
Electrical shock
Internal wiring problem Ensure that the machine
wiring matches the
appropriate wiring
diagram. Replace any
wires or components which
are short circuiting.
Mechanical problem Higher amp draws indicate
a mechanical problem, find
the problem before using
the machine.
Repeated circuit breaker tripping
Faulty circuit breaker Test circuit for continuity.
Replace circuit breaker if
necessary.
Pad not centered Re-center pad.
Damaged or unevenly worn
pad.
Replace pad. Do not rest
machine on pad when not
in use.
Excessive vibration
Damaged pad driver. Replace.