Carrier 38MHRB series - DIAGNOSIS AND SOLUTION (CONT.); Temperature Sensor Resistance Check

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DIAGNOSIS AND SOLUTION (CONT)
Main Parts Check
Temperature Sensor Checking
Disconnect the temperature sensor from the PCB, measure the resistance value with a tester.
Fig. 43 – Tester
Temperature sensors.
Room temp.(T1) sensor,
Indoor coil temp.(T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor discharge temp.(T5) sensor.
Measure the resistance value of each winding by using the multi−meter.