Unit Address Duplication / Outdoor Unit Address Error

What does E31 mean?

An indoor unit has a duplicated address number (within the range U00-U47), or there is an incorrect address setting for the outdoor unit. This leads to communication conflicts and prevents proper system control.

1. 1

   Review and verify the DIP switch or parameter settings for the address of each indoor unit, ensuring all are unique within the U00-U47 range.

2. 2

   Check the outdoor unit's address settings to ensure it is configured correctly and not conflicting with indoor unit addresses.