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Trouble Probable Cause Remedy
Starter or motor failure (how to
distinguish).
Examine motor starter for burned or
failed components. If damage is
found, replace motor starter.
If you have access to a voltmeter, you
can separate a starter failure from a
motor failure by first, verifying
incoming voltage at 220+/-20 and
second, checking the voltage
between starter and motor at 220+/-
20.
If incoming voltage is incorrect, you
have a power supply problem.
If voltage between starter and motor
is incorrect, you have a starter
problem.
If voltage between starter and motor
is correct, you have a motor problem.
Motor failure. If electric motor is suspect, you have
two options: Have a qualified
electrican test the motor for function
or remove the motor and take it to an
electric motor repair shop and have it
tested.
Machine incorrectly wired. Double check to confirm all electrical
connections are correct. Refer to
appropriate wiring diagrams on pages
34-36 to make any needed
corrections.
Machine will not
start/restart or
repeatedly trips
circuit breaker or
blows fuses.
(continued)
Start/stop switch failure. If a start or stop switch is suspect, you
have two options: Have a qualified
electrician test the switch for function,
or purchase a new switch and
establish if that was the problem on
changeout.
Planer does not
come up to speed.
Low current. Contact a qualified electrician.
Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call
1-800-274-6848, Monday through Friday (see our website for business hours, www.wmhtoolgroup.com).
Having the Model Number and Serial Number of your machine available when you call will allow us to
serve you quickly and accurately.