45
Problem
Possible Cause
Remedy
[8] All components
run, but no ice is
produced. (continued)
g) Headmaster (C.P.R.)
(remote condenser
unit)
1. Not operating properly
and liquid line
temperature too warm.
1. Replace headmaster.
h) Water Supply Line
(water-cooled model)
1. Condenser water
pressure too low or
off and high pressure
control opens and
closes frequently.
1. Check and get
recommended pressure.
i) Water Regulating Valve
(water-cooled model)
1. Set too high.
1. Adjust or replace. See
"V.I. Adjustment of
Water Regulating Valve
(water-cooled model)."
2. Evaporator is Frozen Up
Problem
Possible Cause
Remedy
[1]Freeze cycle time is
too long.
a) Inlet Water Valve
1. Diaphragm does not
close.
1. Check for water leaks with
icemaker off.
b) Float Switch
1. Float does not move
freely or switch
defective.
1. Clean or replace. See "IV.
D. Float Switch Check and
Cleaning."
c) Evaporator
1. Scaled up.
1. Clean.
2. Damaged.
2. Replace.
d) Spray Tubes
1. Dirty.
1. Clean.
2. Out of position.
2. Place in position.
e) Pump Motor
1. RPM too slow.
1. See chart 1.[5].
f) Thermistor
1. Disconnected, loose,
or defective.
1. Connect, secure, check.
See "V.J. Removal
and Replacement of
Thermistor" and "IV.E.
Thermistor Check."
g) Refrigerant
1. Low charge.
1. Check for leaks. Recover,
repair, evacuate, and
recharge.
h) Expansion Valve
1. Bulb loose.
1. Secure bulb.
2. Operating erratically.
2. Check and replace.
i) Control Board
1. Defective.
1. See "IV.B. Control Board
Check."
[2]All ice formed on
evaporator does not
fall into bin in harvest
cycle.
a) Evaporator
1. Scaled up.
1. Clean.
2. Damaged.
2. Replace.
b) Ambient and/or Water
Temperature
1. Too cool.
1. Increase temperature.
c) Water Supply Line
1. Water pressure too
low.
1. Check and get
recommended pressure.
d) Water System
1. Water supply line too
small; requires 3/8"
OD line dedicated per
machine.
1. Increase water line size.
2. Water filter clogged or
flow rate too small.
2. Replace filter or install a
higher flow rate filter.
