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TROUBLESHOOTING
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
There is low
pressure, not
enough air, or the
compressor does not
stop.
1. The tank drain valve is open.
2. There is a leak in the
3. There is a prolonged or
excessive use of air.
4. The compressor is not large
enough.
5. There is a hole in the air hose.
6. The tank leaks.
7. The seals are blown.
8. The valve leaks.
9. There is a leaking or worn
piston.
1. Close the drain valve.
2. Check
with soapy water.
Tighten or reseal leaking
DO NOT OVERTIGHTEN.
3. Decrease the amount of air used.
4. Check the air requirement of the
accessory. If it is higher than the
CFM and the pressure supplied by
the compressor, you need a larger
compressor. Most accessories are
rated at 25% of the actual CFM
while running continuously.
5. Check and replace if necessary.
6.
WARNING: Immediately
replace the tank. DO NOT attempt
to repair.
Air leaks from the
regulator or the
regulator does not
regulate air pressure.
1. The internal parts of the
regulator are dirty or damaged.
1. Replace the regulator or internal
parts.
The regulated
pressure gauge
reading drops when
the air accessory is
being used.
1. This is normal.
2. The compressor is not large
enough.
1. If the pressure drops too low, adjust
the regulator while the accessory is
used.
2. Check the air requirement of the
accessory. If it is higher than the
CFM and the pressure supplied by
the compressor, you need a larger
compressor. Most accessories are
rated at 25% of the actual CFM
while running continuously.
The pressure relief
valve opens.
1. The tank pressure exceeds the
normal rating pressure.
2. The pressure switch is stuck.
1. Replace the pressure switch.
2. Replace the pressure switch.
7. Replace the compressor assembly.
Replace the compressor assembly.8.
9. Replace the compressor assembly.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
The motor will not
run.
1. Tank pressure exceeds the
preset pressure switch limit.
2. The fuse is blown or the circuit
breaker tripped.
3. The check valve is stuck in the
open position.
4. The wire gauge in the cord is
wrong or the extension cord
length is excessive.
5. There are loose electrical
connections.
6. The motor’s thermal overload
protection has tripped.
7. The motor, capacitor or safety
valve is defective.
1. The motor will start automatically
when the tank pressure drops
below the tank cut-in pressure.
2. Replace the blown fuse or reset
the circuit breaker. Do not use a
fuse or circuit breaker with a higher
circuit.
Check for proper fuse; type T fuse
is acceptable.
Check for low voltage and proper
extension cord size.
Disconnect other applications from
the circuit. Operate the compressor
on a dedicated circuit.
3. Remove and clean or replace.
4. Check for proper gauge and
extension cord length.
5. Contact an authorized service
center.
6. Turn the air compressor off, unplug
7. Have the compressor serviced by a
qualified technician.
the power cord and wait until the
motor has cooled down. Plug in
the power cord only after the motor
has cooled down, waiting
thermal overload protector has
the
recovered.
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