E08 Duplicate Indoor Unit Address Settings Error
1.
Error Detection Method
It is judged an error if the addresses of indoor units are duplicated.
•
The indoor unit address settings are duplicated in the remote control detailed settings mode.
•
The multiple unit DISP pin is shorted across the indoor unit whose address is Not Set.
2.
Error Diagnosis
1
Indoor
1-1
Is the DISP pin on the indoor unit control PC board shorted?
unit
control
Conduct checks prior to auto address setting.
PC board
1-2
Does E08 fail to go off even after running auto address setting again?
The nonvolatile memory (EEPROM) on the indoor unit board has failed.
1-3
Replace the EEPROM.
Do not make changes to indoor unit addresses with the detailed settings of the remote
controller.
1-4
Make them in the remote control address change mode.
•
For information on the procedures for replacing the nonvolatile memory (EEPROM) of the indoor unit, refer to the manual
that is packaged with the indoor unit service board.
A746802 : 4-way Cassette Type
EEPROM
DISP pin
A747711 : Ceiling Type (T2 type)
EEPROM
DISP pin
A746803 : Duct Type
EEPROM
DISP pin
5-21
Yes
Remove the short
No
1-2
Yes
1-3
No
1-4
5