Component Testing; Bin Thermistor; Evaporator Thermistor - KitchenAid KUIS155H Technical Education

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.
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.
Sensor Temperature
°F (°C)
0 (–18)
10 (–12)
32 (0)
50 (10)
70 (21)
90 (32)

COMPONENT TESTING

Electrical Shock Hazard
Resistance Ω
81,715 - 99,874
59,422 - 72,627
30,266 - 36,992
18,219 - 22,267
10,280 - 12,564
6,387 - 7,807
• 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

EVAPORATOR THERMISTOR

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.
Sensor Temperature
°F (°C)
0 (–18)
10 (–12)
32 (0)
50 (10)
70 (21)
90 (32)
5-1
Resistance Ω
81,715 - 99,874
59,422 - 72,627
30,266 - 36,992
18,219 - 22,267
10,280 - 12,564
6,387 - 7,807