
9 9
TROUBLESHOOTI
problem possible causes Likely Solutions
Compressor does
not start or restart
1. Tank(s) already pressurized.
2. Power cord not plugged in properly.
3. Incorrect power supply.
4. No power at outlet.
5. Thermal overload switch tripped.
6. Building power supply circuit tripped
or blown fuse.
7. Cord wire size is too small or cord is
too long to properly power compressor.
8. Compressor needs service.
1. No problem. Compressor will start when needed.
2. Check that cord is plugged in securely.
3. Check that circuit matches compressor
requirements.
4. Reset circuit breaker, or have outlet serviced by a
qualified technician.
5. Turn off Compressor and wait for it to cool down.
Press reset button. Resume operation.
6. Reset circuit or replace fuse. Check for low voltage
conditions. It may be necessary to disconnect other
electrical appliances from the circuit or move the
compressor to its own circuit.
7. Use larger diameter or shorter extension cord or
eliminate extension cord. See Recommended Wire
Gauge for Extension Cords in Safety section.
8. Have unit inspected by a qualified technician.
Compressor builds
pressure too slowly
1.Incorrect power supply.
2.Working environment too cold.
3.Safety valve leaking.
4. Loose fittings.
1. Check that circuit matches compressor
requirements.
2. Move compressor to a warmer location. Check
that recommended oil is in crankcase.
3. Listen for air leaking from valve. If leaking, replace
with identical valve with same rating. Do not seal or
tamper with safety valve.
4. Reduce air pressure, then check all fittings with a
soap solution for air leaks and tighten as needed. Do
not over tighten.
Compressor not
building enough
air pressure
1. Air filters need cleaning/replacing.
2. Check Valve needs service.
3. Compressor not large enough for job.
4. Loose fittings.
5. Hose or hose connections too narrow.
6. High altitude reducing air output.
1. Check inlet and outlet filters. Clean and/or replace
as needed.
2. Have technician clean or replace, as needed.
3. Check if accessory CFM is met by Compressor. If
Compressor cannot supply enough air flow (CFM),
you need a larger Compressor.
4. Reduce air pressure, then check all fittings with a
soap solution for air leaks and tighten as needed.
Do not overtighten.
5. Replace with wider hose and/or hose connections.
6 Higher altitudes require compressors with greater
output.