21
5 U.S. GALLONS (18.9 L) AIR COMPRESSOR 058-9308-0
Troubleshooting
WARNING!
Potential hazard that could result in serious injury or loss of life.
• Always shut OFF the compressor, remove the power plug from the electrical
outlet, and release all pressure from the air system, before attempting to
install, service, relocate or perform any maintenance in the compressor.
• Allow the compressor to cool after extended use to avoid skin burns.
PROBLEM POSSIBLE CAUSES SOLUTIONS
Air pressure is low or
compressor does not
stop.
1. Drain valves are opened.
2. Leakage in fittings.
3. Air filter is restricted.
4. Prolonged use of excessive
amount of air.
5. Compressor capacity is low.
6. Air hose is worn or damaged.
7. Leakage in air tank.
8. Leakage in safety relief valve.
1. Close the drain valves.
2. Check fittings with soapy water. Tighten or
reseal leaking fittings. Do not overtighten.
3. Clean or replace air filter.
4. Decrease the amount of air being used.
5. Check the air requirement of the air tool.
If it is higher than the CFM and pressure
supplied by the compressor, use a compressor
of higher capacity. Most tools are rated at 25%
of actual CFM while running continuously.
6. Check and replace the air hose if required.
7. Replace the air tank immediately. Do not
attempt to repair it.
8. Replace the valve.
The pressure regulator
knob does not regulate
the pressure.
The regulator knob is dirty or
damaged.
Replace the regulator knob.
The motor runs
continuously when the
ON/OFF switch is in
the ON position.
1. The ON/OFF switch does not shut
OFF the motor when the air
compressor reaches the cut-out
pressure and the safety valve
activates.
2. The compressor’s capacity is not
high enough.
1. Set the ON/OFF switch to the OFF position. If
the motor does not shut OFF, unplug the air
compressor. If the ON/OFF switch is defective,
replace it.
2. Check air requirements of the accessory that is
being used. If it is higher than the CFM and the
pressure supplied by the compressor, use a
compressor of higher capacity. Most
accessories are rated at 25% of actual CFM
while running continuously.
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