Daikin FTKS50BVMB, Service Manual

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SiEN18-622 Troubleshooting for Outdoor Unit
Troubleshooting 395
7.31 Malfunction of Transmission between Main and Sub
Remote Controls
Remote Control
Display
U8
Applicable
Models
AII indoor unit models
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 „
Malfunction of transmission between main and sub remote control
„ Connection between sub remote controls
„
Defect of remote control PCB
Troubleshooting
Caution
(V2 8 25)
YE S
YE S
YE S
NO
NO
NO
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.
U s ing 2-remote
control s control.
SS 1of b oth remote
control s i s s et to
" S UB."
SS 1 of
remote control PC b o a rd s
i s s et to "MAIN."
S et SS 1 to "MAIN"; the
power su pply off once a nd
then ba ck on.
T u rn the power off a nd then
ba ck on. If a m a lf u nction
occ u r s , repl a ce the remote
control PC b o a rd.
S et one remote control to
"MAIN"; the power su pply
off once a nd then ba ck on.