Hoshizaki IM-240DME Service Manual page 72

3. ABNORMAL ICE
PROBLEM
[1] Large-hole a) Water Supply
cubes.
b) Ambient or
c) Air Filter,
d) Water Valve
e) Pump Motor
f) Refrigerant
g) Thermistor,
h) Expansion
[2] Cloudy cubes. a) Water Supply
b) Water Quality
c) Water Valve
d) Water System
e) Water Plate
f) Pump Motor
g) Thermistor,
[3] Slab does not a) Extension
break into
separate
b) Clearance
cubes.
c) Evaporator
d) Thermistor,
CHECK
1. Low pressure.
Line
1. Too high.
Water
Temperature
1. Clogged.
Condenser
1. Clogged.
1. Leaks.
2. Bearings worn out.
3. Mechanical Seal worn
out.
1. Undercharged.
Charge
1. See "II. 2. CONTROLLER BOARD".
Controller Board
1. Poorly adjusted.
Valve
1. Low pressure.
Line
2. Clogged.
1. High hardness or
contains impurities.
2. Lime is deposited inside
Cooling Water Tubing.
1. Clogged.
1. Scaled up.
1. Jet hole clogged.
1. Leaks.
2. Bearings worn out.
3. Mechanical Seal worn
out.
1. See "II. 2. CONTROLLER BOARD".
Controller Board
1. Over-extended.
Spring
1. Too much.
between
Evaporator and
Water Plate
1. Dirty or scaled up.
1. See "II. 2. CONTROLLER BOARD".
Controller Board
POSSIBLE CAUSE
68
REMEDY
1. Check for recommended
pressure.
1. Check for recommended
temperatures.
1. Clean.
1. Clean.
1. Repair or replace.
2. Replace.
3. Replace.
1. Check for leaks and
recharge correctly.
1. Readjust.
1. Check for recommended
pressure.
2. Check Strainer and
clean.
1. Install a water filter or
scale treatment.
2. Clean.
1. Clean.
1. Clean or remove scale.
1. Clean.
1. Replace.
2. Replace.
3. Replace.
1. Replace.
1. Readjust.
1. Clean or remove scale.
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