Champion Compressors Ltd. Manual No. 975203 Rev H
72
26.0 TROUBLESHOOTING
In the event there is a fault with your compressor, the following table has been compiled to help
locate and rectify the most commonly experienced faults. If in any doubt, or if uncertainty exists
always contact Champion Compressors for advice.
Possible Cause Remedy
26.1 Machine will not start.
Thermal Overload Tripped.
Screw Over Temperature.
Control Fuse Blown (CSU S/D Only).
Check overload setting. Adjust & Reset - Control pressure
setting possibly too high.
Check Cooler for blockages, Check Fan Operation, Check
Oil Level, Check Machine Location.
Replace Fuse.
26.2 Compressor starts with difficulty.
Power supply voltage low.
Oil on belts / Low Belt Tension.
Drive Misalignment.
Intake valve opening on startup /
Solenoid energised on startup. (CSU
S/D Only).
Check mains supply with authorities.
Replace & check cause. Check Belt Tension.
Align Drive System.
Check Intake Valve Operation. Check Solenoid Valve
Operation, if necessary replace.
26.3 Motor starts and compressor does not load - CSU S/D Only.
Plant pipework already pressurised.
Faulty solenoid valve.
Lower system pressure.
Replace solenoid valve.
26.4 Compressor does not provide enough air.
Too much air usage.
Inlet filter blocked.
Throttle not opening fully.
Contact Champion. Compressor may be too small.
Clean or replace.
Overhaul / replace.
26.5 Compressor does not stop or unload.
Safety Valve Blows.
Control pressure switch set too high. Set to correct
pressure. Check solenoid valve, replace if required.
Check MPV, service if required.
26.6 Excessive Oil Consumption.
Oil leak in piping.
Compressor carrying over oil.
Remake leaking joints.
Check for purge flow. Replace separator element.
26.7 Oil in inlet filter.
Throttle not closing upon shutdown.
Separator element faulty.
Overhaul throttle, Check solenoid valve or replace.
Replace separator element.
26.8 Belts are slipping.
Oil on belts / belts worn.
Incorrect belt tension.
Replace belts. Check for source of oil / wear.
Retension Belts.
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