Product Manual

CAP881
40
7.0 Troubleshooting
Compressor will not start
a. No power
b. Fuses blown in the control circuit.
c. Loose or missing wires or components in
the control circuit.
d. Incorrect voltage e.g. using 230 volt in a
460 volt system.
e. Faulty temperature sensor.
f. Pressure in oil separator tank.
Unit starts – but shuts down immediately
a. Pressure transducer or timer failure.
b. High Air Temperature
c. Loose or missing electrical components.
d. Pressure limit set too low.
e. Motor overloads trip out.
f. Low voltage.
Compressor does not build up to the desired
pressure.
a. Inlet valve partially closed.
b. Belt slippage.
c. Restricted inlet air cleaner.
d. Excessive air demand.
e. Defective pressure gauge.
f. Pressure limit set too low.
g. Excessive pressure drop across the separator
element.
h. Solenoid valve stuck open.
i. Air end malfunction – excessive clearance
or rotor movement.
j. Compressor sized too small.
k. Safety valve keeps discharging.