Display "Under Host Computer Integrate Control" Blinks (Repeats Double Blink) - Daikin FCQ18PVJU Service Manual

Troubleshooting by Indication on the Unified ON/OFF Controller
5.3 Display "Under Host Computer Integrate Control" Blinks
(Repeats Double Blink)
Remote
"Under host computer integrated control" (Repeats double blink)
Controller
Display
Applicable Unified ON/OFF controller
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
 Central control address (group No.) is not set for indoor unit.
Supposed
 Improper address setting
Causes
 Improper wiring of transmission wiring
Troubleshooting
155
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts could be damaged.
Is the central
NO
control address (group No.)
set for the
indoor unit?
YES
Is the switch
NO
for setting each address
set correctly?
YES
Is
the transmission
YES
wiring disconnected or
wired incorrectly?
NO
SiUS28-902_a
Set by remote controller the
central control address for all
indoor units connected to the
central control line.
Set the switch for setting each
address correctly and
simultaneously reset the power
supply for all optional controllers
for centralized control.
Fix the wiring correctly.
Replace the P.C.B. of the unified
ON/OFF controller.
Troubleshooting