5-1

COMPONENT TESTING
Before testing any of the components, perform
the following checks:
• Control failure can be the result of corrosion
on connectors. Therefore, disconnecting and
reconnecting wires will be necessary through-
out test procedures.
• All tests/checks should be made with a VOM
or DVM having a sensitivity of 20,000 ohms-
per-volt DC, or greater.
• Check all connections before replacing com-
ponents, looking for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
• Resistance checks must be made with power
cord unplugged from outlet, and with wiring
harness or connectors disconnected.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

BIN THERMISTOR

Refer to page 4-2 for the procedure for servic-
ing the bin thermistor.
1. Unplug ice maker or disconnect power.
2. Set the ohmmeter to the appropriate scale.
3. For the most accurate measurement, im-
merse the thermistor in ice water for 5
minutes, then use the 32°F/0°C reading in
the chart.
4. Touch the ohmmeter test leads to the two
bin thermistor connectors. The meter
should indicate as shown in the following
chart.
Refer to page 4-2 for the procedure for servic-
ing the evaporator thermistor.
1. Unplug ice maker or disconnect power.
2. Set the ohmmeter to the appropriate scale.
3. For the most accurate measurement, im-
merse the thermistor in ice water for 5
minutes, then use the 32°F/0°C reading in
the chart.
4. Touch the ohmmeter test leads to the two
evaporator thermistor connectors. The
meter should indicate as shown in the
following chart.

EVAPORATOR THERMISTOR

Sensor Temperature
°F (°C) Resistance Ω
0
(
–18
)
81,715 - 99,874
10
(
–12
)
59,422 - 72,627
32
(
0
)
30,266 - 36,992
50
(
10
)
18,219 - 22,267
70
(
21
)
10,280 - 12,564
90
(
32
)
6,387 - 7,807
Sensor Temperature
°F (°C) Resistance Ω
0
(
–18
)
81,715 - 99,874
10
(
–12
)
59,422 - 72,627
32
(
0
)
30,266 - 36,992
50
(
10
)
18,219 - 22,267
70
(
21
)
10,280 - 12,564
90
(
32
)
6,387 - 7,807