MNL-0408June 11, 2009 Page 897.11 Trouble Shooting Guide7.11.1 Compressor Will Not Start7.11.2 Compressor Is Shutdown, Alarm Code Flashing Sequence.Possible Cause or Problem Corrective ActionEmergency Stop Switch not pulled out. Pull out Switch.Selector Switch not in ON position. Turn switch to ON.Lights on PLC not illuminated Check voltage and phasesAir Pressure not low enough to close pressure switch. PLC input I3 should be illuminated.7.11.2.1 One Flash - Compressor High TemperatureInvestigate or Possible Cause Corrective ActionCompressor is hot Improve compressor ventilationTemperature switch electrical connector unplugged Reconnect plugTemperature switch failure, check that PLC Input I1 ison.Replace High Temperature Switch7.11.2.2 Two Flashes - Compressor Low Oil PressureInvestigate or Possible Cause Corrective ActionLow Oil Pressure after oil and filter change. Restart 1or 2 more times.Check Oil Pressure with Gauge, if lower than specified Check Oil LevelReplace Oil FilterCheck Compressor Rotation DirectionCheck Oil Pressure with Gauge, if in specified range Reset Pressure Switch7.11.2.3 Three Flashes - Compressor OvertimeInvestigate or Possible Cause Corrective ActionThe compressor is shut down after 5 hours of continuousoperationTurn Compressor Control Switch to OFFthen back to ON.
