7
Troubleshooting Guide
The air compressor should be turned off and unplugged from the power source before any maintenance is
performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could
occur from moving parts, electrical sources, compressed air, or hot surfaces.
WARNING
PROBLEM
POSSIBLE CORRECTION
Air leaks at the check valve or at the
pressure relief valve.
A defective check valve results in a constant air leak at the
pressure relief valve when there is pressure in the tank and the
compressor is shut off. Drain the tank, then remove and clean or
replace the check valve.
Air leaks between head and cylinder.
Be sure of proper torque on head bolts. If leak remains, contact a
service technician.
Air leak from safety valve.
Operate the safety valve manually by pulling on the ring.
If the valve continues to leak when in the closed position, it should
be replaced.
Pressure reading on the regulated
pressure gauge drops when an
accessory is used.
If there is an excessive amount of pressure drop when the
accessory is used, replace the regulator.
NOTE
Adjust the regulated pressure under flow conditions
(while accessory is being used). It is normal for the gauge to show
minimal pressure loss during initial use of the tool.
Excessive tank pressure.
Move the Auto-On/Off switch to the Off position. If the unit doesn’t
shut off, unplug it from the power source and contact
a service technician.
Motor will not start.
Make sure power cord is plugged in and the switch is on. Inspect
for the proper size fuse in your circuit box. If the fuse was tripped,
reset it and restart the unit. If repeated tripping occurs, replace the
check valve or contact a service technician.
Thermal overload protector cuts
out repeatedly.
1. Lack of ventilation, room temperature too high.
Move to cooler environment.
2. Excessive air usage, compressor too small for this application.
Lower rate of consumption.
Excessive moisture in the
discharge air.
Remove the water in the tank by draining after each use.
High humidity environments will cause excessive condensation.
Utilize water filters on your air line.
NOTE
Water condensation is not caused by compressor malfunction.
Be sure the compressor’s air output is greater than your tool’s air
consumption rate.
Air leaks from the tank body or
tank welds.
Never drill into, weld or otherwise modify the air tank or it will weaken.
The tank can rupture or explode. Compressor cannot be repaired.
Discontinue use of the air compressor.
WARNING
