20
C. Diagnostic Charts
1. No Ice Production
Problem Possible Cause Remedy
[1] The icemaker will not
start.
a) Power Supply 1. Off, blown fuse, or
tripped breaker.
1. Turn on, replace, or reset.
2. Power cord
unplugged.
2. Plug into outlet.
3.Loose connection. 3.Tighten.
4.Bad contacts. 4.Check for continuity and
replace.
5.Not within
specications.
5.Refer to nameplate and
correct.
b) Power Switch
(Control Box)
1. "OFF" position. 1. Move to "ON" position.
2.Bad contacts. 2.Check for continuity and
replace.
c) Suction Temperature
Safety
(Low Water/Freeze-Up
Safety)
1. Open due to water
supply cut-off.
1. Check water supply,
water lters, water inlet
strainer-washer, oat, and
water valve.
2.Open due to
evaporator freeze-up
(gear motor not
operating).
2.Check gear motor
operation.
3.Bad contacts. 3. Check for continuity and
replace.
d) Bin Control Thermostat
Assembly (with
integrated heater)
1. Open with bin lled
with ice.
1. Remove ice.
2. Ambient temperature
too cool.
2. Increase ambient
temperature.
3. Bulb out of position. 3. Place in position.
4. Bad contacts. 4. Check for continuity
and replace. See
"V.F. Removal and
Replacement of Bin
Control Thermostat
Assembly."
5. Bad thermostat
heater.
5. Check and replace.
See "V.F. Removal
and Replacement of
Bin Control Thermostat
Assembly."
e) Gear Motor Protector
(External Overload)
(2.4~3.0A)
1. Tripped. 1. Press switch on control
box to reset. Check
supply voltage, gear
motor amperage, gear
motor bearings, and
auger bearings (see
"V.C.1. Upper Bearing
Wear Check"). Check for
evaporator freeze-up.
