Thermistor
Check the resistance value across the 2 pins of 2- pin thermistor connector with an ohm-meter.
The thermistors of RTS (Evaporator air inlet thermistor) and CTS1 (Evaporator pipe thermistor)
are the same type. If the measured value is outside of the thermistor specification, replace the
thermistor.
RTS / CTS1
2
1
2-pin connector
Thermistor Specification
20
15
10
5
0
32
41
50
59
68
77
86
95
104
133
122
(0)
(5)
(10)
(15)
(20)
(25)
(30)
(35)
(40)
(45)
(50)
Temperature °F (°C)
High Pressure Switch
Check for continuity between pin 1 and pin 2 of the connector. If continuity does not exist, replace
high pressure switch.
2
1
2-pin connector
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