Daikin FTKS50BVMB, Service Manual

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Troubleshooting for SkyAir Indoor Unit SiEN18-622
348 Troubleshooting
5.13 Transmission Error (between Main and Sub Remote
Control)
Remote Control
Display
U8
Applicable
Models
FFQ, FCQ, FBQ, FHQ
Method of
Malfunction
Detection In case of controlling with 2- remote control, check the system using microcomputer if signal
transmission between indoor unit and remote control (main and sub) is normal.
Malfunction
Decision
Conditions Normal transmission does not continue for specified period.
Supposed
Causes „ Transmission error between Main remote control and Sub remote control
„ Connection among “Sub” remote controls
„
Faulty remote control PCB
Troubleshooting
NO NO
NO
YE S
YE S
YE S
( S 2042)
Controlling with
2-remote control
Both SS -1
s witche s on remote
control s a re t u rned
to " Sub "
SS -1 s witch on
remote control PCB
i s t u rned to "M a in"
T u rn the SS -1 s witch of one
remote control to "M a in".
T u rn OFF the power su pply,
a nd re s t a rt oper a tion
T u rn OFF the power once
a nd re s t a rt oper a tion.
Repl a ce remote control PCB
if a ny error i s gener a ted.
T u rn the SS -1 s witch of one
remote control to "M a in".
T u rn OFF the power su pply,
a nd re s t a rt oper a tion.
Caution
Be su re to t u rn off power s witch b efore connect or di s connect connector,
or p a rt s d a m a ge m a y b e occ u rred.