Evaporator Thermistor; Bin Thermostat - KitchenAid KAR-13 Technical Education

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

EVAPORATOR THERMISTOR

Refer to page 4-8 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. Disconnect the wire from electronic con-
trol board terminal TH1 or TH2.
NOTE: If the evaporator thermistor fails, it will
normally fail completely open or shorted. Use
the chart below to check for the approximate
resistance at a given temperature.
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)
WARNING
Electrical Shock Hazard
Resistance
Ω
12,467 - 14,933
9,373 - 11,227
5,500 - 6,500
3,550 - 4,250
2,275 - 2,725
1,547 - 1,853
5-2

BIN THERMOSTAT

Sensor
Refer to page 4-10 for the procedure for servic-
ing the bin thermostat.
NOTE: The bin thermostat is fragile and should
be handled with care.
1. Unplug ice maker or disconnect power.
2. Set the ohmmeter to the R x 1K scale.
3. Disconnect the wires from the bin thermo-
stat terminals.
4. Touch the ohmmeter test leads to the two
bin thermostat terminals. The meter should
indicate continuity (0 Ω) at room tempera-
ture.