Malfunction Of Transmission Between Main And Sub Remote Controllers - Daikin E-Series Service Manual

SiAU18-715
7.31 Malfunction of Transmission between Main and Sub
Remote Controllers
U8
Remote
Controller
Display
Applicable AII indoor unit models
Models
Method of In case of controlling with 2-remote controller, check the system using microcomputer if signal
transmission between indoor unit and remote controller (main and sub) is normal.
Malfunction
Detection
Malfunction Normal transmission does not continue for specified period.
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Malfunction of transmission between main and sub remote controller
Connection between sub remote controllers
Defect of remote controller PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Using 2-remote
controllers control.
YES
SS1 of both
remote controllers is set
to "SUB."
YES
SS1 of
NO
remote controller PC
boards is set to
"MAIN."
YES
NO
Troubleshooting for Outdoor Unit
NO
Set SS1 to "MAIN"; the
power supply off once and
then back on.
Turn the power off and then
back on. If a malfunction
occurs, replace the remote
controller PC board.
Set one remote controller
to "MAIN"; the power
supply off once and then
back on.
(Q0580)
393