Low Ice Production - Hoshizaki KMS-1122MLH Service Manual

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 "II.C. Control Board Check"
6. Thermistor
See "II.F. Thermistor Check"
7. Hot Gas Valves (KMS & SRK)
8. Inlet Water Valve
9. Compressor
10. Liquid Line Valves (KMS & SRK) a) Erratic or open.
11. Thermostatic Expansion Valve
(TXV)
12. Headmaster
1. Evaporator
2. Float Switch
See "II.E. Float Switch Check
and Cleaning"
3. Inlet Water Valve
4. Hot Gas Valves (KMS & SRK)
5. Condenser
6. Control Board
See "II.C. Control Board Check"
7. Refrigerant Charge
8. Thermostatic Expansion Valve
(TXV)
9. Compressor
10. Pump Motor
11. Liquid Line Valves (KMS & SRK) a) Erratic or restricted.
12. Headmaster
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) Screen or orifice clogged.
a) Inefficient or off.
a) Defective.
a) Defective.
Long Freeze Cycle
a) Scaled up, dirty.
a) Scaled up, dirty.
b) Float sticking.
c) Defective switch.
a) Leaking by.
a) Erratic or open.
a) Clogged.
a) Float switch connection loose (K5).
b) Defective.
a) Low.
a) Bulb loose.
b) Defective.
a) Inefficient or off.
a) RPM too slow.
a) Defective.
24