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Troubleshooting
Problem Probable Cause Remedy
Not plugged into receptacle Plug it into the power source receptacle
Switch not in the ON position Turn the switch to the ON position
Motor cord cut or abraded Replace with a new cord
Plug on cord is faulty Replace with a new plug
Fuse or circuit breaker open Re-set, may be too many machines on line
Motor will not start
Motor faulty Call WMH Tool Group Customer Service
Department
Too many electrical machines
running on the same outlet
Turn off other machines and try again
Incorrect fuse Try time delay fuse, or go to circuit with
higher rated fuse of circuit breaker
Wheels cannot rotate because of
obstruction
Unplug and turn grinding wheel by hand
Undersized extension cord Use correct size extension cord; see
manual
Motor will not start and
fuse or circuit breaker
opens
Short circuit Cord, plug, or motor need repair; call WMH
Tool Group Customer Service Department
Low line voltage Check power line for proper voltage
Motor fails to develop
full power
Faulty motor or capacitor Call WMH Tool Group Customer Service
Department
Overload on motor Reduce load to motor; do not press so hard
Poor ventilation for motor Unplug and clean out around motor;
provide better air circulation
Motor overheats
Capacitor failure Call WMH Tool Group Customer Service
Department
Motor overload Reduce load to motor; do not press so hard
Low line voltage Check power line for proper voltage
Loose wire connections Call WMH Tool Group Customer Service
Department
Motor stalls or slows
Faulty motor Call WMH Tool Group Customer Service
Department
Motor overload Reduce load to motor; do not press so hard
Overload of electrical circuit Too many electrical appliances on same
circuit
Frequent fuse or circuit
breaker failure
Incorrect fuse of circuit breaker Have electrician upgrade service to outlet