Daikin SkyAir Super Inverter 70 D Series, Service Manual

Page: 193 / 255

Troubleshooting by Remote Controller Display / LED Display SiE25-110
184 Troubleshooting
6.39 Transmission Error Between Main Remote Controller
and Sub Remote Controller
Remote
Controller
Display
U8
LED Display A — 1 — 2 — 3 — 4 —
Applicable
Models
All models of indoor unit
Method of
Malfunction
Detection 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
Decision
Conditions Normal transmission does not continue for specified period.
Supposed
Causes Transmission error between Main remote controller and Sub remote controller
Connection among “Sub” remote controllers
Faulty remote controller PCB
Troubleshooting
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.
Controlling
with 2-remote controller
Both SS-1
switches on remote
controllers are turned
to "Sub"
SS-1switch on
remote controller PCB
is turned to
"Main"
NO NO
NO
YES
YES
YES
(S2042)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.