Daikin CTXU25G2V1B Service Manual page 157

Troubleshooting
Troubleshooting
154
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check flashing interval of LED 5
Is it 0.5 sec.?
(same as LED A)
NO
(0.2 sec. interval)
YES (0.5 sec. interval)
Check voltage between +5V and
GND
5 V±0.5 V
YES
Power on again
Is the fault repeated?
NO
SiBE12-908
NO
Replace outdoor unit PCB.
YES
Replace outdoor unit PCB.
The cause seems to be an
external factor other than
failure of the outdoor unit
PCB.
Monitor in long term.
(R9454)
Service Diagnosis