Ice-O-Matic ICEU070A installation manual

ICEU070A

Service Diagnosis

SYMPTOM	POSSIBLE CAUSE	SUGGESTED CORRECTION
Irregular cubes size & some	Some jets plugged	Remove jet cover and clean.
cloudy	Shortage of water	See shortage of water.
	Unit not leveled	Level as required.
	Poor pumping	Check and/or replace the water pump.
Cubes too large	Cube size control set	Check and adjust for proper operation.
	improperly
Decreased ice capacity	Inefficient compressor	Replace.
	Leaky water valve	Repair or replace.
	Non-condensable gas in	Purge the system.
	system
	Poor air circulation or	Relocate the unit or provide for more ventilation.
	excessive hot location
	Overcharge of refrigerant	Correct the charge.
	Capillary tube partially	Recover charge, add new gas & drier, after
	restricted	evacuating system with vacuum pump.
	Undercharge of refrigerant	Charge to data plate indication.
	Discharge head pressure too	See incorrect discharge pressure.
	high
	Clogged air filter	Clean or replace.
Poor harvest	Restriction in incoming water	Check water valve strainer and flow control. If
	line	necessary enlarge the flow control orifice.
	Too short defrost time	Check temperature control. Replace if
		necessary.
	Cube size control set for too	Re-set cube size control.
	large
	Water inlet valve not opening	Valve coil with open winding. Replace valve.
	Hot gas valve orifice restricted	Replace hot gas valve assy.
	Air vented holes in mold cups	Clean out holes.
	plugged
	Discharge head pressure too	See incorrect discharge pressure
	low
Unit won’t harvest	Inoperative cube size control	Replace cube size control
	Hot gas valve not opening	Valve coil with open winding. Replace valve.
	Water solenoid valve not	Valve coil with open winding. Replace valve.
	opening
Incorrect discharge pressure	Dirty air filter	Clean or replace.
	Inoperative hi press control	Replace.
Excessive water in unit base	Water tubing leaking Check.	Tighten or replace.

Page 13