Daikin RXSQ24TAVJU Service Manual page 268

Troubleshooting by Error Code
Troubleshooting
255
A
Do two or
YES
more ON/OFF controllers
connect?
NO
Does the
YES
remote control adaptor
connect?
NO
Does
YES
the schedule timer
connect?
NO
Are
there two or
YES
more centralized controllers
connected with setting
connectors?
NO
Concurrently reset the power supply
of all the centralized controllers.
When troubleshooting fails
Does
the ON/OFF
NO
controller control range
switch have duplicate
setting?
YES
YES
Does the data
station connect?
NO
Does the
YES
parallel interface
connect?
NO
Does the
Independent/Combined
YES
use connector of the
schedule timer
connect?
NO
SiUS331708EA
Modify the setting of the
ON/OFF controller control
range setting switch.
Reset the power supply of
the ON/OFF controller.
Not available for combined use with
the remote control adaptor. Dismount
the remote control adaptor, and then
concurrently reset the power supply of
all the centralized controllers.
Not available for combined use of
schedule timer and data station.
Dismount either, and then
concurrently reset the power supply of
all the centralized controllers.
Not available for combined use of
schedule timer and parallel interface.
Dismount either, and then
concurrently reset the power supply
of all the centralized controllers.
Dismount the
Independent/Combined use
connector of the schedule
timer, and then concurrently
reset the power supply of all
the centralized controllers.
Integrate one unit for the
centralized controller
connected with the setting
connector, and then
concurrently reset the
power supply of all the
centralized controllers.
Disconnect the setting
connector of the master
centralized controller and
connect it to a different
centralized controller, and then
reset the power supply of all the
centralized controllers. If after
this the error is resolved, the
centralized controller connected
with the setting connector is
faulty. Replace the controller.
Service Diagnosis