Transmission Error (Between Main And Sub Remote Controllers) - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

Troubleshooting by Remote Controller
2.36 Transmission Error (between Main and Sub Remote
Controllers)
U8
Remote
Controller
Display
Applicable All indoor unit models
Models
Method of Error In case of controlling with 2-remote controller, check the system using micro-computer if signal
transmission between indoor unit and remote controller (main and sub) is normal.
Detection
Error Decision Normal transmission does not continue for a certain amount of time.
Conditions
Supposed
Causes
Troubleshooting
166
Transmission error between main and sub remote controller
Connection among sub remote controllers
Defective remote controller PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Controlling with 2-remote
controller.
YES
Both SS1 of remote
controllers is set to
"SUB."
YES
SS1 of remote
NO
controller PCB is set
to "MAIN."
YES
NO
SiBE341027
NO
Set SS1 to "MAIN".
Turn OFF the power supply
once, and restart operation.
Turn OFF the power once
and restart. If a error
operation occurs, replace
the remote controller PCB.
Set SS1 of one remote
controller to "MAIN".
Turn OFF the power supply
once, and restart operation.
Service Diagnosis