Solar Sensor: Testing and Inspection

INSPECTION

SUNLOAD SENSOR

TROUBLE SYMPTOM
- Sensor identifies that sunlight is at maximum. Then, A/C system is controlled to COOL side.
- Sensor identifies that sunlight is at minimum. Then, A/C system is controlled to HOT side.

NOTE: When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as having an open circuit. Always check the sunload sensor with the sun shining on it.

WIRING DIAGRAM

Wiring Diagram:

Step 1-6: