Error 202 - Indoor/Outdoor unit communication error (all indoor units or outdoor unit cable)

What does 202 mean?

A general communication error affecting all indoor units, or an issue specifically with the outdoor unit's communication cable.

• Faulty outdoor unit communication cable
• Widespread communication issue affecting the entire system

Click steps to track your progress.

1. 1

   Inspect the outdoor unit's main communication cable for any damage or loose connections.

2. 2

   Power cycle both the indoor and outdoor units by turning off their main power for 30 seconds and then turning it back on.

3. 3

   Ensure all communication wiring throughout the system is correctly installed and secure.