Section 5 --Troubleshooting - Ingersoll-Rand CENTAC Instruction Manual

SECTION 5 – TROUBLESHOOTING

Section 5 --Troubleshooting

Symptom
Fail to start
Ineffective Prelube Pump
High Oil Temperature
Low Oil Pressure
Possible Cause
Failure to clear shutdown or
interlock devices.
No primary power to starter.
No control panel power to
compressor control panel or starter.
Loose or corroded connection or
defective power cables.
Defective motor starter or starting
circuit.
Improper adjustment of prelube
pump relief valve.
Pump not running.
Defective motor.
Defective pump.
No seal air. (Seal air interlock is
optional feature.)
Low or no water flow to oil cooler.
Higher water temperature than
realized.
Improper temperature device
setting.
Dirty or plugged oil cooler on water
side.
Improper adjustment of system
pressure relief valve.
Leaking or pinched oil line.
Dirty oil filter.
Defective main oil pump.
Corrective Action
Correct shutdown or interlock
condition that is indicated by panel
light.
Check voltage to starter. Check
fuses.
Check voltage to panel/starter.
Check control transformer.
Check connections. Clean, tighten
and replace as necessary.
Troubleshoot starter per
manufacturer's recommendation.
Adjust relief valve for correct
pressure.
Troubleshoot pump starter. Check
for proper voltage.
Repair or replace motor.
Repair or replace pump.
Establish seal air.
Establish correct water flow.
Take necessary steps to lower the
water supply temperature.
Calibrate instrument.
Clean cooler tubes. Provide water
strainers as necessary.
Adjust system pressure relief valve
for correct oil pressure.
Repair or replace oil line.
Replace with clean filter.
Repair or replace main oil pump.
Centac Instruction Manual
 2000 Ingersoll-Rand Company
Date of Issue: December, 2003
5.1