Product Manual

CAP881
41
Compressor will not load
a. Pressure set too low
b. Inlet valve will not open.
c. Faulty solenoid valve.
Capacity (delivery) is below stated amount
a. Restricted inlet air filter.
b. Inlet valve partially closed.
c. Air pressure set too high.
d. Insufficient oil flow.
e. Solenoid valve malfunction.
f. Belt slippage.
g. Leakage in air system.
h. Worn air end.
Compressor surges
a. Erratic air demand.
b. Customer air system too small for supply.
c. Minimum pressure valve.
d. Pressure differential too low for the system
conditions.
e. Loose electrical connection between the
controller and the solenoid valve.
f. Faulty pressure transducer.
g. Faulty solenoid valve.
h. Faulty pressure relief valve.
Excessive Oil Consumption
a. Overfilled sump.
b. Broken oil line.
c. Plugged oil return line.
d. Operating below rated pressure.
e. Damaged or dirty separator.
f. Lightly loaded or excessive load/unload
cycles.
g. Using incorrect oil.