Low Ice Production; Abnormal Ice - Hoshizaki KM-1601SWH Service Manual

Problem
[3]Other. (continued)

3. Low Ice Production

Problem
[1] Freeze cycle time is
long.
[2] Harvest cycle time is
long.

4. Abnormal Ice

Problem
[1] Small cubes.
[2] Cloudy or irregular
cubes.
Possible Cause
g) Water Supply Line
h) Water Filter
Possible Cause
a) See chart 1.[3] and check dirty air filter or condenser, ambient or water
temperature, water pressure, condenser water regulating valve (water-cooled
model), and refrigerant charge.
b) See chart 2.[1] and check float switch, inlet water valve, and control board.
c) Check pump, hot gas valve, headmaster (C.P.R.) (remote air-cooled model),
expansion valve, refrigeration check valve, and compressor.
a) See chart 2.[2] and check control board, thermistor, evaporator, ambient and/or
water temperature, water supply line, inlet water valve, line valve, and gas valve.
Possible Cause
a) Ice Cube Guide
b) See chart 1.[5] and check water supply line, inlet water valve, water system,
pump motor, and control board.
c) Pump Out Check Valve 1. Dirty.
a) See chart 2.[1] and 2.[3], and check float switch, inlet water valve, control
board, spray tubes, water system, refrigerant charge, and expansion valve.
b) Spray Guide
c) Water Quality
1. Too small; requires
1/2" OD line dedicated
per machine.
1. Flow rate too small.
1. Out of position.
Circulated water falls
into bin.
1. Dirty.
1. High hardness or
contains impurities.
1
Remedy
1. Increase water line size.
1. Replace with filter that has
larger flow rate.
Remedy
Remedy
1. Place in position.
1. Clean.
1. Clean.
1. Install a water softener or
filter.