" Malfunction of Transmission between Main and Sub
All indoor unit models
If controlling with 2remote controllers, check the system using a micro-computer to ensure that the
signal transmission between the indoor unit and the remote controllers (main and sub) is normal.
Normal transmission does not continue for specified period.
Malfunction of transmission between main and sub remote controller
Connection between sub remote controllers
Defect of remote controller PCB
Caution Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
Using 2 remote
of both remote controllers is
set to "SUB."
of remote controller PCB
is set to "MAIN."
Troubleshooting by Indication on the Remote Controller
Set SS1 to "MAIN"; the power
supply off once and then back
Turn the power off and then
back on. If a malfunction occurs,
replace the remote controller
Set one remote controller to
"MAIN"; the power supply off
once and then back on.