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Problem Possible Cause Remedy
[]
All ice formed on
evaporator does not
fall into bin in harvest
cycle. (continued)
l) Refrigerant . Low charge. . Check for leaks. Recover,
repair, evacuate, and
recharge.
m)Water Regulating Valve
(water-cooled model)
. Leaking by in harvest. . Check and replace.
[3]Other. a) Ice Cube Guide . Out of position. .Place in position.
b) Thermostatic Bin
Control
. Bulb out of position. . Place in position.
.
Bad contacts. . Check for continuity and
replace. See "IV.C..
Thermostatic Bin Control
Check."
c) Mechanical Bin Control .Movement restricted. . Check and free.
.
Defective. . See "IV.C.. Mechanical
Bin Control Check and
Cleaning."
3. Low Ice Production
Problem Possible Cause Remedy
[] Freeze cycle time is
long.
a) Inlet Water Valve . Diaphragm does not
close.
. Check for water leaks with
icemaker off.
b) Float Switch . Float switch does not
move freely or switch
defective.
. Clean or replace. See "IV.
D. Float Switch Check and
Cleaning."
c) Evaporator . Scaled up. . Clean.
.
Damaged. .Replace.
d) Spray Tubes . Dirty. . Clean.
.
Out of position. . Place in position.
e) Pump Motor . RPM too slow. . See chart .[5].
f) Condenser (except
water-cooled model)
. Air lter or condenser
clogged.
. Clean.
g) Refrigerant Charge . Low charge. . Check for leaks. Recover,
repair, evacuate, and
recharge.
h) Hot Gas Valve . Open. . Check and replace.
i) Expansion Valve . Bulb loose. . Secure bulb.
.
Operating erratically. . Check and replace.
j) Compressor . Erratic or off. .See chart .[3].
k) Condenser Water
(water-cooled model)
. Water regulating valve
set too high.
. Adjust or replace. See
"V.J. Adjustment of Water
Regulating Valve."
.
Condenser water
pressure too low.
. Check and get
recommended pressure.
3. Water temperature out
of specication.
3. Correct to specication.
l) Liquid Line Valve . Erratic, sticking. . Check and replace.
m)Headmaster (C.P.R.)
(remote condenser
unit)
. Bypassing. . Replace.