Error 212 - Rotary switch has 3 or more same indoor unit addresses

What does 212 mean?

The rotary switch on the MCU (Microcontroller Unit), used for setting indoor unit addresses, has been incorrectly configured with three or more units having the same address.

• Incorrect address setting on the MCU rotary switch during installation
• Oversight in assigning unique addresses

Click steps to track your progress.

1. 1

   Carefully inspect the rotary switches on the MCU for indoor unit address settings.

2. 2

   Ensure each indoor unit is assigned a unique address to avoid conflicts.

3. 3

   Adjust the rotary switches to correct any duplicate addresses according to the system's addressing scheme.