-24-
Model G0785 (Mfd. Since 3/15)
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does
not start or a
breaker trips.
1. Switch disabling key removed.
2. Plug/receptacle at fault/wired wrong.
3. Incorrect power supply voltage or
circuit size.
4. Power supply circuit breaker tripped or
fuse blown.
5. Motor wires connected incorrectly.
6. ON/OFF switch at fault.
7. Start capacitor at fault.
8. Motor at fault.
1. Install switch disabling key.
2. Test for good contacts; correct the wiring.
3. Ensure correct power supply voltage and
circuit size.
4. Ensure circuit is sized correctly and free of
shorts. Reset circuit breaker or replace fuse.
5. Correct motor wiring connections.
6. Replace switch.
7. Test/replace.
8. Test/repair/replace.
Machine stalls
or is underpowered.
1. Dust collection ducting problem.
2. Dust collector undersized.
3. Filter bags at fault.
4. Filter element at fault.
5. Motor wired incorrectly.
6. Plug/receptacle at fault.
7. Motor overheated.
1. Clear blockages, seal leaks, use smooth wall
duct, eliminate bends, close other branches.
2. Move closer to machine/redesign ducting
layout/upgrade dust collector.
3. Empty and clean bag(s).
4. Clean filter(s)/empty bag(s).
5. Wire motor correctly.
6. Test for good contacts/correct wiring.
7. Clean motor, let cool, and reduce workload.
Machine has
vibration or
noisy operation.
1. Motor or component loose.
2. Motor fan rubbing on fan cover.
3. Motor bearings at fault.
4. Impeller loose on motor shaft.
1. Inspect/replace damaged bolts/nuts, and
retighten with thread locking fluid.
2. Fix/replace fan cover; replace loose/damaged fan.
3. Test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.
4. Tighten impeller (Page 28).
SECTION 7: SERVICE
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
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