Low Ice Production - Hoshizaki KM-1601SAH/3 Service Manual

Freeze Up - Possible Cause
7. Inlet Water Valve
8. Float Switch
See "IV.D. Float Switch Check
and Cleaning."
9. Pump Motor
10. Thermostatic Expansion Valve
(TXV)
11. Headmaster (C.P.R.) (remote
condenser unit)
12. Water Regulating Valve
(water-cooled model)
See "IV.F. Adjustment of Water
Regulating Valve."

3. Low Ice Production

Low Ice Production - Possible Cause
1. Evaporator
2. Spray Tubes and/or Spray
Guides
3. Refrigerant Charge
4. Water Supply
5. Control Board
See "IV.B. Control Board Check."
6. Thermistor
See "IV.E. Thermistor Check."
7. Hot Gas Valve
8. Inlet Water Valve
9. Compressor
10. Liquid Line Valve (if applicable)
11. Thermostatic Expansion Valve
(TXV)
12. Water Regulating Valve
(water-cooled model)
1. Evaporator
2. Refrigerant Charge
3. Air Filter (air-cooled model)
4. Condenser
5. Condenser (water-cooled model) a) Water temperature out of specification.
a) Leaking by.
a) Float does not move freely.
b) Defective.
a) RPM too slow.
b) Impeller damaged.
a) Defective.
a) Defective.
a) Out of adjustment.
Long Harvest Cycle
a) Scaled up.
a) Dirty.
b) Out of position.
a) Low.
a) Low water pressure.
b) External water filters clogged.
c) Insufficient water line size.
Minimum 3/8" nominal ID copper water tubing or equivalent.
d) Too cold.
a) Thermistor connection loose (K3).
b) Defective.
a) Loose, disconnected, or defective.
a) Erratic or closed.
a) Water valve screen clogged.
a) Inefficient or off.
a) Erratic or open.
a) Defective.
a) Leaking by.
Long Freeze Cycle
a) Scaled up.
a) Low.
a) Clogged.
a) Clogged.
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