TROUBLESHOOTING GUIDE
Problem Encountered
The compressor does not start or restart:
Possible Cause
Power cord not plugged in. Motor/Pressure switch in "OFF" position Motor thermal overload switch has tripped.
Fuse blown or circuit breaker has tripped.
Wrong gauge wire or length of extension cord.
Air tank pressure exceeds motor/pressure switch
Pressure release valve on motor/pressure switch has not unloaded pump head pres- sure.
Defective motor, motor capacitor, motor/pressure switch.
Possible Solution
Plug cord into grounded outlet.
Move switch to "AUTO" position.
Turn air compressor off, wait until the motor is cool, then press motor thermal overload (red) button firm- ly until click is heard.
Replace fuse or reset circuit breaker. Check for proper fuse amperage. Check for low voltage conditions.
Disconnect any other electrical appliances from cir- cuit or operate air compressor on its own branch cir- cuit.
Check chart in instruction manual for proper gauge wire and cord length.
Motor will start automatically when air tank pressure drops below
Bleed the line by moving the switch to the "OFF" position.
Contact Factory Customer Service at
The compressor motor | Overloaded motor. | Have a certified electrician check the motor and |
stalls: |
| wiring, then proceed with his or her recommenda- |
|
| tions. |
| Improper lubrication. | See LUBRICATION section in instruction manual. |
| Low oil level. | Check oil level and fill if necessary. |
| Defective check valve. | Replace check valve. |
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Excessively noisy opera- Loose motor pulley or pump flywheel.
tion:
Lack of oil in the pump crankcase.
Tighten pulley and/or flywheel (where applicable).
Check oil level. If low, check for possible bearing damage. Add correct amount of oil.
Carbon deposits on pistons or valves.
Remove cylinder head and inspect. Clean or replace parts as needed.
Bearing, piston or connecting rod failure. | STOP THE COMPRESSOR! Contact Factory |
| Customer Service at |
Worn connecting rod. | Replace with new connecting rod. |
Worn piston wrist pin bushing. | Remove piston/connecting rod assembly from the |
| compressor and inspect for excess wear. Replace |
| worn parts as needed. |
Worn bearings. | Replace worn bearings as needed. Note: Dirty oil can |
| cause accelerated wear. Change oil frequently using |
| recommended oil. |
Noisy check valve. | Replace check valve. |
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