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Troubleshooting by Indication on the Unified ON/OFF Controller
SiUS28-902_a
155
Troubleshooting
5.3
Display “Under Host Computer Integrate Control” Blinks
(Repeats Double Blink)
Remote
Controller
Display
“Under host computer integrated control” (Repeats double blink)
Applicable
Models
Unified ON/OFF controller
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Central control address (group No.) is not set for indoor unit.
Improper address setting
Improper wiring of transmission wiring
Troubleshooting
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector, or parts co
u
ld
b
e damaged.
Is the s
w
itch
for setting each address
set correctly?
Is
the transmission
w
iring disconnected or
w
ired incorrectly?
Replace the P.C.B. of the
u
nified
O
N
/OFF controller.
Fix the
w
iring correctly.
Set
b
y remote controller the
central control address for all
indoor
u
nits connected to the
central control line.
YES
YES
Set the s
w
itch for setting each
address correctly and
sim
u
ltaneo
u
sly reset the po
w
er
s
u
pply for all optional controllers
for centralized control.
N
O
N
O
N
O
YES
Is the central
control address (gro
u
p
N
o.)
set for the
indoor
u
nit?
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