37
Problem
Possible Cause
Remedy
[5] Water pump will not
start. (continued)
a) Pump Motor
(continued)
6. Mechanical seal worn
out.
6. Check and replace.
b) Control Board
1. Defective.
1. See "II.C.4. Control Board
Check Procedure."
c) Control Switch
1. Bad contacts.
1. Replace.
[6] Freeze cycle time is
too short.
a) Drain Valve
1. Leaking by.
1. Clean or replace.
b) Float Switch
1. Dirty or erratic
operation.
1. Clean or replace.
c) Control Board
1. Defective.
1. See "II.C.4. Control Board
Check Procedure."
[7] Fan motor will
not start, or is not
operating.
(except
water-cooled model)
a) Fan Motor
1. Motor winding
opened.
1. Replace.
2. Bearing worn out.
2. Replace.
3. Wiring to fan motor.
3. Check for loose
connection or open, and
replace.
4. Defective capacitor.
4. Replace.
5. Fan blade bound.
5. Check and replace.
b) Control Board
1. Defective.
1. See "II.C.4. Control Board
Check Procedure."
[8] All components
run, but no ice is
produced.
a) Refrigerant
1. Low charge.
1. Check for leaks and
recharge.
2. Air or moisture
trapped.
2. Replace drier and
recharge.
b) Compressor
1. Defective valve.
1. Replace.
c) Hot Gas Valve
1. Continues to open in
freeze cycle.
1. Check and replace.
d) Line Valve
(if applicable)
1. Continues to close in
freeze cycle.
1. Check and replace.
e) Inlet Water Valve
1. Water valve is wide
open during freeze.
1. Check for water leaks with
icemaker off.
f) Expansion Valve
1. Operating erratically.
1. Check and replace.
g) Headmaster (C.P.R.)
(remote air-cooled
model only)
1. Not operating properly
and liquid line
temperature too warm.
1. Replace headmaster.
h) Water Supply Line
(water-cooled model
only)
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
only)
1. Set too high.
1. Adjust or replace. See
"V.G. Adjustment of Water
Regulating Valve."
