Transmission Error (Between Main And Sub Remote Controller) - Daikin Sky Air B-Series R-410A Service Manual

Troubleshooting for Indoor Unit
5.14 Transmission Error (Between Main and Sub Remote
Controller)
U8
Remote
Controller
Display
Applicable
FFQ-B, FHQ-BU
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
158
Transmission error between Main remote controller and Sub remote controller
Connection among "Sub" remote controllers
Faulty remote controller PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Controlling
NO
with 2-remote controller
YES
Both SS-1
NO
switches on remote
controllers are turned
to "Sub"
YES
SS-1switch on
NO
remote controller PCB
is turned to
"Main"
YES
Si21-205
Turn the SS-1switch of one
remote controller to "Main".
Turn OFF the power supply, and
restart operation
Turn OFF the power once and
restart operation.
Replace remote controller PCB if
any error is generated.
Turn the SS-1switch of one
remote controller to "Main".
Turn OFF the power supply, and
restart operation.
(S2042)
Troubleshooting