U8 Indoor Unit: Malfunction Of Transmission Between Main And Sub Remote Controllers - Daikin RXYQ96PYDN Service Manual

SiUS34-801A_b
U8
3.51 Indoor Unit: Malfunction of Transmission between Main
and Sub Remote Controllers
U8
Remote
Controller
Display
Applicable
All models of indoor units
Models
Method of
In case of controlling with 2-remote controller, check the system using microcomputer if signal
Malfunction transmission between indoor unit and remote controller (main and sub) is normal.
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 PC board
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
Troubleshooting by Indication on the Remote Controller
SS1
NO
of remote controller PC boards
is set to "MAIN."
YES
NO
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.
(V2825)
431