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2. LOW ICE PRODUCTION
PROBLEM
CHECK
POSSIBLE CAUSE
REMEDY
[1] Freeze cycle
time is too
long.
a) Water supply
1. Low pressure.
1. Check for recommended
pressure.
b) Water
temperature
1. Too high.
1. Check for recommended
water temperature.
c) Water quality
1. High hardness or contains
impurities.
1. Install a water filter or
scale treatment.
2. Lime is deposited inside
cooling water tubing.
2. Clean.
d) Refrigerant
charge
1. Overcharged or
undercharged.
1. Recharge correctly and
check for leaks.
e) Refrigerant circuit
1. Excessive moisture.
1. Replace drier and
recharge correctly.
f) Thermistor,
controller board
1. See “II. CONTROLLER BOARD”.
g) Air filter,
condenser
1. Clogged.
1. Clean.
[2] Takes too long
for water pan
to close.
a) Evaporator
1. Scaled up.
1. Clean or remove scale.
b) Refrigerant
charge
1. Undercharged.
1. Check for leaks and
recharge correctly.
c) Hot gas valve
1. Defective.
1. Replace.
d) Thermistor,
controller board
1. See “II. CONTROLLER BOARD”.
e) Fan motor
1. Runs during defrost cycle.
1. Check wiring.
3. ABNORMAL ICE
PROBLEM
CHECK
POSSIBLE CAUSE
REMEDY
[1] Large hole
cubes.
a) Water supply line
1. Low pressure.
1. Check for recommended
pressure.
b) Ambient or water
temperature
1. Too high.
1. Check for recommended
temperatures.
c) Air filter,
condenser
1. Clogged.
1. Clean.
d) Water valve
1. Clogged.
1. Clean.
e) Pump motor
1. Leaks.
1. Repair or replace.
f) Refrigerant charge
1. Undercharged.
1. Check for leaks and
recharge correctly.
g) Thermistor,
controller board
1. See “II. CONTROLLER BOARD”.
[2] Cloudy cubes.
a) Water supply line
1. Low pressure.
1. Check for recommended
pressure.
2. Clogged.
2. Check strainer and clean.
b) Water quality
1. High hardness or contains
impurities.
1. Install a water filter or
scale treatment.
2. Lime is deposited inside
cooling water tubing.
2. Clean.
c) Water valve
1. Clogged.
1. Clean.
d) Water system
1. Scaled up.
1. Clean or remove scale.
e) Water plate
1. Jet hole clogged.
1. Clean.
