Campbell Hausfeld Portable Air Compressor, Operating Instructions Manual

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Troubleshooting Chart
(Continued)
Symptom Possible Cause(s) Corrective Action
Reset mechanism cuts
out repeatedly or fuses
blow repeatedly 1. Too many devices on same circuit 1. Limit the circuit to the use of only the air compressor.
2. Incorrect fuse size or circuit breaker 2. Be sure that fuses or circuit breakers are rated properly.
3. Malfunctioning check valve
3. Replace check valve.
Do not disassemble check
valve with air pressure in tank
4. Pressure switch set too high 4. Adjust or replace.
5. Loose wiring 5. Check all electrical connections.
6. Malfunctioning motor 6. Replace motor.
Tank does not hold
pressure when
compressors off and the
shut off valve is closed 1. Worn check valve
1. Replace check valve.
Do not disassemble check
valve with air pressure in tank
2. Check all connections and fittings
for leaks
2. Tighten.
3. Check tank for cracks or pin holes 3. Replace tank. Never repair a damaged tank.
Pressure switch
continuously blows air
out the unloader valve Malfunctioning check valve Replace the check valve if the unloader valve bleeds off constantly.
Do not disassemble check
valve with air pressure in tank
Pressure switch does
not release air when
the unit shuts off Malfunctioning unloader valve on
pressure switch Replace the pressure switch if it does not release the pressure for a
short period of time when the unit shuts off.
Do not disassemble check
valve with air pressure in tank
Excessive vibration 1. Loose fasteners 1. Tighten.
2. Belt needs replaced 2. Replace with correct size.
3. Belt alignment 3. Align flywhell and pulley.