Troubleshooting
Problem Possible Cause Corrective Action
Compressor starts but shuts
Circuit breaker or fuse is
open.
Reset the Circuit breaker or
replace a fuse. Compare the
electric service with system
specifications. Consult a
SCAI Service Center if the
problem persists.
Component failure in the
power circuit.
Check for an open circuit
breaker or fuse. Reset or
replace if necessary. Check
for a faulty component.
Incorrect current draw. Measure the current. Check
motor winding resistances. If
checks reveal a failed motor
windings or locked rotor,
consult SCAI Service Center.
Compressor overload relay
opens.
If power checks indicate the
utilities are within
specifications, interlocks may
be faulty. Consult a SCAI
Service Center.
System starts but gas
pressures are abnormally
high or low.
Wrong equalization pressure. Refer to Specifications and
the section on Charging and
Venting. Leak check the
system if the pressure is low.
Gas line couplings are not
fully engaged.
Ensure all Aeroquip couplings
are fully engaged and
torqued.
Gas lines are connected
wrong.
Reconnect lines. See the
Installation section.
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