Continuous Flow Icemaker Service Manual

CONDENSER MODULATING VALVE REMOVAL

1.Disconnect power to unit, then shut off water supply to condenser and evacuate refrigerant from system.

2.Remove inlet water line from Condenser Modulating Valve. Also remove tube from high side refrigerant line.

3.Remove Condenser Modulating Valve and bracket from unit.

4.Remove valve from bracket.

5.Replace Condenser Modulating Valve by reversing Steps 2 through 4. Then pull system into vacuum.

6.Charge unit with proper amount of refrigeration.

7.Turn power and water on to unit.

8.With unit running, adjust modulating valve to proper setting.

9.Go through a complete system check.

GEARMOTOR

OVERLOAD TRIPPED

Check water level control and evaporator water tube for line build-up restrictions.

NO

CAUTION

Clear ice from evaporator and auger before resetting overload.

Reset overload.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IMPORTANT

 

 

Icemaker

 

 

 

Resets but

 

 

 

 

 

runs.

 

 

 

 

Icemaker runs when

 

 

 

 

 

motor does

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

not run.

 

reset but problem has

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

not been found.

 

 

 

 

 

 

 

 

 

 

 

Continue checking for

 

 

 

 

 

 

 

 

 

 

 

overload as follows to

 

 

Short run. Trips

 

 

 

 

 

 

guard against future

 

 

again in 2

 

 

Resets but

 

problems.

 

 

minutes. Check

 

 

 

 

 

 

 

motor does

 

 

 

 

gearmotor circuits.

 

 

 

 

 

 

 

 

 

 

 

 

 

not run.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check

OVERLOAD GUIDE

 

 

 

 

 

 

 

ELECTRICAL:

 

 

 

 

 

 

 

gearmotor

 

 

 

 

 

 

 

circuits.

High or low voltage. Weak power lines can cause overloads on icemakers restarts.

High running current (2.4amps or above). Check motor circuits and start relay.

Auger delay failed.

ICEMAKER

Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing. Icemaker not turning off. Failed ice level control.

Over compression. Low water inlet temperature. Restrictions in water line from reservoir.

REFRIGERANT

Contaminated charge or bad compressor. Low charge or gas leak.

Low suction pressure. Improper expansion valve. Sensing bulb location or insulation and/or defective expansion valve.

YES

CLEAN

See Instructions.

Will not

Reset.

Overload

hot try again.

Will not reset.

Replace overload.

Publication Number: 630460174SER

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© 2004-2005, IMI Cornelius Inc.

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Cornelius 1000 - Series, 700 - Series, 2000 - Series Condenser Modulating Valve Removal, Gearmotor Overload Tripped