Error 205 - Communication error on all outdoor unit PBA within C-Box or cable error

What does 205 mean?

A communication error affecting all Printed Board Assemblies (PBAs) within the outdoor unit's C-Box, or a general communication cable error within that enclosure.

• Damaged internal communication cables within the outdoor unit's C-Box
• Faulty PBA module
• Power issue to the C-Box components

Click steps to track your progress.

1. 1

   Power off the outdoor unit and inspect internal communication cables within the C-Box for damage or loose connections.

2. 2

   Ensure all PBAs (Printed Board Assemblies) are securely seated in their slots.

3. 3

   If the issue persists, professional service is recommended as it may indicate a faulty PBA or internal wiring problem.