Discharge Air Temperature Sensor / Switch: Testing and Inspection

INSPECTION

INSPECT DUCT TEMPERATURE SENSOR







a. Remove the air duct sensor.
b. Measure the resistance according to the value(s) in the table.

NOTE:
- Touching the sensor even slightly may change the resistance value. Hold the connector of the sensor.
- When measuring the resistance, the sensor temperature must be the same as the ambient temperature.

HINT: As the temperature increases, the resistance decreases (see the graph).

If the resistance value is not as specified, replace the sensor.