Panasonic S-36PU1E5A Service Manual page 580

E14 Main Unit duplication in Simultaneous-operation Multi Control (detected outdoor unit)
1. Error Detection Method
It is judged an error that the main units are duplicated in the indoor unit group.
• Main unit setting was made in the indoor unit group control setting of the remote control detailed settings mode.
2. Failure Diagnosis
1 Group
1-1
Control
Address
2 Installation 2-1
& Setting
2-2
5
Are multiple indoor units set up as the main unit?
Set up only one indoor unit as the main unit and other indoor units to the sub-unit.
Carry out the auto address setting.
5-24
Yes 2-1
No 2-2