Reading and Clearing Diagnostic Trouble Codes

Diagnostic Chart for Self-diagnosis

OPERATION

Step 1-5:

1. SENSOR CHECK TABLE

NOTE: When checking the sunload sensor indoor or in the shade, an open circuit might be indicated. Always check the sunload sensor at a location exposed to direct sunlight.






- The LED blinking pattern for open circuit failures






- The LED blinking pattern for short circuit failures






2. OPERATING MODE TABLE