Daikin FTX25JVEA9 Service Manual page 258

Si18-201
Troubleshooting
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the outdoor unit's
LED A.
Outdoor unit's LED A
Flashing
Check the indoor unit's LED A.
Indoor unit's LED A
Check the indoor unit's LED B.
Indoor unit's LED B
Flashing
Check the cable connection
between the indoor unit and
remote controller
Is it normal?
YES
Check the cable between the
indoor unit and remote
controller.
Is it normal?
YES
Troubleshooting - Split Type Indoor Unit
ON or OFF
ON
OFF
ON
OFF
NO
NO
To the section on outdoor
unit diagnosis
To the section on faulty
indoor unit PCB
To the section on faulty
power supply or faulty
indoor unit PCB
Replace the indoor unit
PCB.
Signal transmission error
(between indoor and
outdoor units)
Correct the connection.
Replace the remote
controller cable.
Replace the remote
controller or indoor unit
PCB.
(MF010)
245