CC — Start-up system check in progress

What does CC mean?

The system is performing an initial check after installation or power-up. The 'CC' display indicates this diagnostic sequence is active. It will proceed to test heating and cooling modes based on ambient temperature.

• System is undergoing initial power-up diagnostics

Click steps to track your progress.

1. 1

   Wait for the start-up system check to complete. This may take 10-15 minutes.

2. 2

   Ensure the outdoor ambient temperature is within the operational range for testing (-20°C to 46°C).

3. 3

   If the display shows an error code instead of 'PS' (pass) or 'BP' (bypass), refer to the service manual.

4. 4

   The test can be manually initiated by setting the remote to Cool, High Fan, 60°F, and pressing 'Sleep' 4 times within 5 seconds.