Page 10
Icemaker Information
6-10
#7005333 - Revision C - September, 2010
Built-In (BI) Series
Built-In (BI) Series
ICEMAKER FAULT TESTING
Bypass 45-minute dwell by pressing ICE MAKER key to OFF,
then again to ON. Now, depress the freezer light switch and
manually start icemaker by turning driver gear counter-clock-
wise with screwdriver.
1
If icemaker starts & finishes cycle:
(
NOTE:
If >15°F, icemaker will only complete 1 revolu-
tion.)
a. Visually inspect electrical connections at icemaker &
valve. Repair if necessary.
b. Check valve operation with test cord, if doesn't open,
replace valve.
c. Check thermostat. (Open: 48°F ±6°, Close: 15°F ±3°).
Replace icemaker if defective.
d. With icemaker in park position, check solenoid switch
terminals "C" & "NO" for continuity. With ejector
between 8:00 & 10:00 position, check solenoid switch
terminals "C" & "NC" for continuity. If no continuity for
either terminal check, replace icemaker.
2. If icemaker starts but does not finish cycle:
a. With icemaker in park position check holding switch ter-
minals "C" & "NC" for continuity. Then with icemaker
ejector between 10:00 & 12:00, check holding switch
terminals "C" & "NO" for continuity. If no continuity for
either terminal check, replace icemaker. (Refer to
enclosed wiring diagram)
b. With icemaker in park position check shut-off switch
terminals "C" & "NO" for continuity. With ejector
between 12:00 & 2:00 check shut-off switch terminals
"C" & "NC" for continuity. If no continuity for either ter-
minal check, replace icemaker.
c. Check mold heater for 75-85
Ω
. If outside range,
heater is bad, replace icemaker. If heater checks OK,
thermostat is bad, replace icemaker.
3
If icemaker motor does NOT start:
a. Lower shutoff arm
b. Check motor operation with test cord. If motor doesn't
run, replace icemaker.
c. Check power to and from icemaker rocker switch (if
present). Reconnect or repair connection or replace
switch as necessary.
d. Check for power from control board to icemaker. If
power is present check & repair connection. If no
power, replace control board.
QUICK REFERENCE
• Water Fill Time: May vary by water pressure
• Fill Tube Heater Ohm: 2850-3890
Ω
• Mold Heater Ohm: 75-85
Ω
• Water Valve Ohm: 160-165
Ω
• Thermostat Open/Close - Open: 48°F ±6° Close: 15°F ±°3
• Water Pressure Needed: 30 -120 psi constant
NOTE:
This is a filtered water specification as non-filtered
systems ae are rated at 20-100 psi.
ICEMAKER TROUBLESHOOTING
No / Slow Ice Production
1
Ice maker system switched OFF. Switch system ON.
2 Shut off arm in up/OFF position. Move to ON position.
3
Freezer too warm. Check temp’s & see troubleshooting
guide in service manual.
4
Poor airflow over icemaker. Remove obstructions.
5
Ice cube jam. Remove ice.
6
Water froze in inlet tube. Remove ice from tube. Check
for power from control board to fill tube heater; Fill tube
heater = 2850-3890
Ω
.
7
Water supply not constant 20-120 psi. Instruct customer.
8
Water line to unit pinched/kinked/clogged. Repair line.
9
Saddle valve not installed correctly. Reposition.
10 Saddle valve not fully open. Open valve fully.
11 Icemaker wire/connections loose/broken. Repair wiring.
12 Water valve wire/connections loose/broken. Repair wiring.
13 Defective water valve. Valve =160-165
Ω.
Replace valve.
14 Thermostat wire/connections loose/broken. Repair wiring.
15 TCO overheat or short. Fix cause or replace icemaker.
16 See Icemaker Fault Testing.
No Water Fill
1
Water supply switched OFF. Switch supply water line ON.
2
Water line to unit pinched/kinked/clogged. Repair line.
3
Saddle valve not installed correctly to supply line.
Reposition.
4
Water froze in inlet tube. Remove ice from tube. Check
for power from control board to fill tube heater; Fill tube
heater = 2850-3890
Ω
.
5
Water valve wire/connections loose/broken. Repair wiring.
6
Defective water valve. Valve =160-165
Ω.
Replace valve.
Overflows / Ice Block Forms in Bucket / Oversized Cubes
1
Icemaker not level. Level icemaker.
2
Unit not level. Level unit
3
Water supply not constant 20-120 psi. Instruct customer.
4
Water froze in inlet tube. Remove ice from tube. Check
for power from control board to fill tube heater; Fill tube
heater = 2850-3890
Ω
.
5
Defective water valve. Valve =160-165
Ω.
Replace valve.
6. Improper fill signal from control board; replace control
board.
Ice Cubes Hollow or Small
1
Icemaker not level. Level icemaker.
2
Unit not level. Level unit
3
Water supply not constant 20-120 psi. Instruct customer.
4
Too little thermalmastic on thermostat. Add thermalmastic.
5
Defective thermostat (Open = 48°F ±6°, Close = 15°F ±3°).
Replace icemaker.
6. Improper fill signal from control board; replace control
board.
Too much Ice
1
Shut off arm/linkage bent, broken or disconnected. Repair,
replace o reconnect arm/linkage.
2
If ejector blades rotate with arm in up/OFF position =
Icemaker faulty. Replace icemaker.
