29
Problem
Possible Cause
Remedy
[3]Other. (continued)
e)Hot Gas Valve
1. Coil winding opened. 1. Replace.
2. Plunger does not
move.
2. Replace.
3. Wiring to hot gas
valve.
3. Check for loose
connection or open, and
replace.
f) Ice Cube Guide
1. Out of position and ice
trapped.
1. Place in position.
3. Low Ice Production
Problem
Possible Cause
Remedy
[1] Freeze cycle time is
long.
a) Inlet Water Valve
1. Diaphragm does not
close.
1. Check for water leaks with
icemaker off.
b) Float Switch
1. Float switch does not
move freely.
1. Clean or replace.
2. Defective switch.
2. Check and replace.
c) Evaporator
1. Scaled up.
1. Clean.
2. Damaged.
2. Replace.
d) Spray Tubes
1. Dirty.
1. Clean.
2. Out of positon.
2. Place in Position.
e) Water Pump
1. RPM too slow.
1. Check and replace.
f) Condenser
1. Air filter or condenser
clogged.
1. Clean.
g) Refrigerant Charge
1. Low charge.
1. Check for leaks. Recover,
repair, evacuate, and
recharge.
h) Hot Gas Valve
1. Open.
1. Check and replace.
i) Expansion Valve
1. Bulb loose.
1. Secure bulb.
2. Operating erratically.
2. Check and replace.
j) Compressor
1. Erratic or off.
1. See chart 1. [3].
k) Control Board
1. Float switch
connection loose.
1. Check and reconnect.
2. Defective.
2. Replace.
[2] Harvest cycle time is
long.
a) Water Supply
1. Water temperature too
cold.
1. Increase temperature.
b) Thermistor
1. Out of position or
defective.
1. Reattatch and secure.
See "II.D. Harvest Control
– Thermistor."
c) Control Board
1. Not reading
thermistor.
1. Check and replace.
d) Inlet Water Valve
1. Clogged.
1. Clean or replace.
e) Evaporator
1. Scaled up.
1. Clean.
f) Hot Gas Valve
1. Does not open, or
opens partially.
1. Check and replace.
g) Expansion Valve
1. Wide open in harvest. 1. Check and replace.
