Hoshizaki KM-1301SWH-E Ice Maker User Manual


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2. Freeze Up
Defrostandcleantheunitpriortodiagnosingfreezeup.See"VI.A.CleaningandSanitizing
Instructions."
Freeze Up - Possible Cause
Harvest Cycle
1. Evaporator a) Scaled up.
b) Damaged.
2. Separators a) Out of position.
3. Cube Guide a) Out of position.
4. Spray Tubes and/or Spray
Guides
a) Dirty.
b) Out of position.
5. Refrigerant Charge a) Low.
6. Ambient Temperature a) Too cool.
7. Water Supply a) Low water pressure.
b) External water lters clogged.
c) Insufficient water line size.
Minimum3/8"nominalID(10mmnominalOD)
8. Thermostatic Bin Control
See"IV.C.1.ThermostaticBin
ControlCheck."
a) Extension bracket not installed.
b) Bulb out of position.
c) Bad contacts.
9. Control Board
See "IV.B.ControlBoardCheck."
a) Harvest timer set too short.
b) Defective.
10. Mechanical Bin Control
See"IV.C.2.MechanicalBin
ControlCheckandCleaning."
a) Actuator does not move freely.
11. Thermistor
See"IV.E.ThermistorCheck."
a) Loose, disconnected, or defective.
12. Hot Gas Valve a) Closed.
13. Inlet Water Valve a) Water valve screen clogged.
14. Liquid Line Valve (if applicable) a) Open.
15. Expansion Valve (TXV) a) Defective.
16. Water Regulating Valve
(water-cooled model)
a) Leaking by.
b) Defective.
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