Ingersoll-Rand 80445364 manual Trouble Shooting, Problem Cause Remedy

		TROUBLE SHOOTING		37
PROBLEM	CAUSE	REMEDY
Compressor fails to	Mains power or Control voltage not available.	§ Check incoming power supply.
start		§ Check the control circuit fuse.
Machine shuts down	High airend temperature.		Top up coolant.
periodically and
	Line voltage variation out of range.	§ Ensure voltage is correctly between operating limits
indicates a fault
			and that no voltage spikes are being introduced into
condition
			the supply by external equipment or power feed.
High current draw	Compressor operating above rated pressure.		Set pressure to correct rating for machine.
	Separator cartridge contaminated.		Change air filter, and separator cartridge.
	Low voltage.	§ Ensure voltage does not drop below 10% on start up
			and 6% running.
	Unbalanced voltage.		Correct incoming supply voltage.
	Damaged airend.	†	Change Airend.
	Compressed air filter(s) contaminated.		Replace air filter(s).
Low current draw	Air filter contaminated.		Change air filter.
	Compressor operating unloaded.		Set pressure to correct rating for machine.
	High voltage.		Reduce site voltage to correct operating voltage.
High discharge	Defective or incorrect pressure switch setting.		Replace or set pressure to correct rating for machine.
pressure
	Inlet valve malfunction.	† Fit inlet valve service kit.
Low system air	Separator cartridge contaminated.		Fit new Separator cartridge.
pressure
	Incorrect pressure transducer setting		Set pressure to correct rating for machine.
	Minimum pressure valve malfunction.	† Fit Minimum pressure valve service kit.
	Air system leaks.	†	Fix leaks.
	Inlet valve malfunction.	† Fit inlet valve service kit.
	System demand exceeds compressor delivery.		Reduce demand or install additional compressor.
High dewpoint	Refrigeration compressor not supplied power.		Check incoming power supply.
			Check the dryer protection fuse.
			Check auxiliary contact on main motor contactor.
	Condensate system malfunction.		Check operation of drain valve.
			Check operation of condensate check valves.
	Condenser dirty.		Clean condenser and replace panel filter element.
Ice formation in dryer	Low evaporator pressure.		Check hot gas valve setting.

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.

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