Cornelius 750 (R404A), SERIES 1100 (R22), 2400 (R404A) service manual

Trouble	Probable Cause	Remedy
MAKING WET ICE.	A. Surrounding air temperature	A. Correct or move unit
	too high.

B.High water level in float reservoir.

C.Dirty condenser.

D.Faulty compressor.

E.Refrigerant leak.

F.”O” ring leaking at bottom of evaporator shell.

B.Lower water level, see step 2, page 5

C.Clean condenser

D.Check and replace

E.Check and repair

F.Check and replace

*NOTE: Special care must be used with R404a (HP62) charged systems using (POE) Polyolester oil. The refrigeration system must not be open longer than 15 min., and the appropriate drier must be used due to the moisture absorption properties of the POE oil.

UNIT RUNS BUT MAKES NO A.	Leak in refrigerant system.	A.	Check and repair.
ICE.
B.	Moisture in system.	B.	Check, dehydrate and add drier to
			system.

C.No water.

D.”O” ring leaking at bottom of evaporator shell.

C.Check water supply.

D.Check and replace ”O” ring.

	E.	Compressor not running.	E. Check and replace ”O” ring
WATER LEAKS.	A.	Worn or bad float valve.	A.	Check and replace.
	B. Float and arm assembly stuck. B. Check and adjust or replace.
	C. ”O” ring leaking at bottom of		C.	Check and replace.
		evaporator shell.
	D.	Storage bin drain and tubing.	D.	Check and repair.

EXCESSIVE NOISE OR	A. Mineral or scale deposits on
CHATTERING.	inside of evaporator shell.

A.Remove and clean inside surfaces by immersing evaporator shell in ice machine cleaner.

B.Intermittent water supply .

C.Water level in float tank too low.

D.Auger gearmotor end–play or worn bearings.

B.Check inlet water line .

C.Check and adjust water level.

D.Repair or replace.

	E.	Air lock in gravity water supply	E.	Check and adjust warmer.
		line from float tank to
		evaporator shell.
MACHINE RUNS WITH FULL	A.	Storage bin thermostat set too	A.	Check and adjust warmer.
BIN OF ICE.		cold.
	B.	Bin thermostat thermowell out	B.	Adjust thermowell.
		of path of ice.

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