Indoor/outdoor unit combination fault — Incompatible units detected

What does Indoor/outdoor unit combination fault mean?

This error suggests that the indoor and outdoor units are not compatible with each other, or there's an issue with their combination settings. This can happen if units were replaced or incorrectly installed.

• Mismatched indoor and outdoor unit models
• Incorrect configuration settings
• Wiring issues between units

Click steps to track your progress.

1. 1

   Verify that the installed indoor and outdoor units are designed to work together.

2. 2

   Turn off the power to both units.

3. 3

   Check all wiring connections between the indoor and outdoor units.

4. 4

   If compatibility is confirmed and wiring is correct, contact your installer to check configuration settings.