U8" Transmission Error Between Main Remote Controller And Sub Remote Controller - Daikin SkyAir RZQ200 · 250C7Y1B Service Manual

Diagnosis by Remote Controller
4.40 "U8" Transmission Error between Main Remote
Controller and Sub Remote Controller
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
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
164
Transmission error between Main remote controller and Sub remote controller
Connection among "Sub" remote controllers
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 PC
board is turned to
"Main"
YES
YES
Is the continuity in
remote control wire?
NO
SiBE26-701
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 PC
board if any error is generated.
Replace the remote control wire.
Turn the SS-1switch of one
remote controller to "Main".
Turn OFF the power supply, and
restart operation.
Troubleshooting