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TROUBLE SHOOTING
48
SSR UP6 40, SSR UP6 50PE, SSR UP6 50PEI, HF50–PE,
EP50–PE, HP50–PE, HXP50–PE
PROBLEM CAUSE REMEDY
Compressor trips due to
over temperature
Compressor operating above rated pressure. Set pressure to correct rating for machine.
over temperature
Package pre–filter blocked. Clean / replace package pre–filter.
Cooler blocked. Clean cooler.
Missing or incorrectly fitted enclosure panels Ensure that all enclosure panels are correctly fitted
Low coolant level. Top up coolant and check for leaks.
High ambient temperature. Re–site compressor.
Restricted cooling air flow. Ensure correct air flow to compressor.
Excessive coolant
consumption
Separator cartridge leak. Fit new Separator cartridge.
consumption
Blocked separator cartridge drain. † Remove fittings and clean.
Compressor operating below rated pressure. Set pressure to correct rating for machine.
Coolant system leak. † Fix leaks.
Excessive noise level Air system leaks. † Fix leaks.
Airend defective. † Change Airend.
Drive belt slipping. Replace belt and tensioner.
Motor defective. † Replace motor.
Loose components. † Retighten loose items.
Shaft seal leaking Defective shaft seal. † Fit Airend shaft seal kit.
Pressure relief valve
opens
Defective switch or incorrect pressure switch setting. Replace or set pressure to correct rating for machine.
opens
Minimum pressure valve malfunction. † Fit Minimum pressure valve service kit.
Load solenoid valve defective. † Fit load solenoid service kit.
Blowdown valve defective. † Fit blowdown solenoid service kit.
Inlet valve malfunction. † Fit inlet valve service kit.
Black residue on belt
guard/cooler box
Drive belt slipping. Replace belt and tensioner.
guard/cooler box
Pulleys misaligned. Re–align pulleys.
Worn pulleys. † Replace pulleys and belt.
Gas strut failed. Replace belt and tensioner.
DRYER OPTION
High Dew Point
(Indicator Red)
Dryer compressor or fan failed. Check electrical supply and repair as required.
(Indicator Red)
Low refrigerant charge. Check for leaks.
High pressure switch tripped. Check condenser coil for debris. Check fan operation.
Clean / repair as required. Reset manual switch.
Low Dew Point
(Indicator Blue)
OR Compressor runs
unloaded with no
system pressure
HGBV out of adjustment / defective. Adjust valve or replace as required.
Never adjust thermal expansion valve. It has been
factory set
Water Down stream of
dryer (Indicator OK)
Restricted / defective drain valve. Clean / replace drain valve.
Clean / replace condensate check valves.
NOTES:
§ Must be carried out by a competent electrician.
† This work is recommended to be carried out only by an Ingersoll Rand authorized service technician.
http://air.ingersollrand.com