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Clearing a fault
7
January 2017
America
39 /72
Potential root cause
Remedy
Intake regulator does not close completely
Make the intake regulator moveable, replace if
needed.
Check solenoid valves (Y1) and pressure reducing
valve (14).
Chart 7-2: Fault cleared by: Unit remains stopped during the run-up phase.
Fault: Unit does not reach the set network pressure.
Potential root cause
Remedy
Network pressure sensor defective
Check the network pressure sensor, replace if
needed.
Too much air captured
Throttle the removal, or switch on and use addi-
tional compressors.
Oil fine separator soiled
Replace oil fine separator cartridge
Air filter dirty
Replace air filter cartridge
Severe leaking
Check compressor. For example:
Check for leaks.
Safety valve after checking is defective or open.
Condensate drain on test function.
Intake regulator does not open completely
Make the intake regulator moveable, replace if
needed.
Check solenoid valves (Y1) and pressure reducing
valve (14) and replace if necessary.
Chart 7-3: Fault cleared by: Unit does not reach the set network pressure.
Fault: Unit switches off.
Potential root cause
Remedy
Water inlet temperature too high
(for water-cooled compressors only)
Check cooling water feed.
Ambient temperature too high
Ventilate the compressor room.
Electric motor defective
Check the electric motor and posistor.
Fan is defective
Check fans, replace if needed.
Sensor, connections, or lines defective
Check sensors, connections, and lines.
Supply cable cross section too small for electrical
lines
Measure current draw; replace lines if needed.
Oil level too low
Top up oil in the pressure vessel
Oil injection pressure too low
Replace oil filter cartridge. Clean oil system
Oil temperature too high
Check oil cooler and fan / check oil temperature,
check cooling water circuit (only for Lxxx W water-
cooled systems)
Compressor defective
Replace compressor
Chart 7-4: Fault cleared by: Unit switches off.
Summary of Contents for L160 110A V2
Page 1: ...User manual Screw compressor L160 L290 V2 L160RS L290RS V2 America ZS1149274 03 January 2017...
Page 7: ...Foreword 1 January 2017 America 7 72 1 6 Rating plate Fig 1 1 Rating plate...
Page 69: ...Appendix 9 January 2017 America 69 72...
Page 70: ...9 Appendix 70 72 America January 2017...