Unspecified Voltage (Between Indoor And Outdoor Units) - Daikin Super Multi NX C-Series Service Manual

Troubleshooting
5.9

Unspecified Voltage (between Indoor and Outdoor Units)

UA
Remote
Controller
Display
Method of
The supply power is detected for its requirements (different from separate type and multi type)
Malfunction by the indoor / outdoor transmission signal.
Detection
Malfunction The separate type and multi type are interconnected.
Decision
Conditions
" Wrong models interconnected
Supposed
" Wrong indoor unit PCB mounted
Causes
" Indoor unit PCB defective
" Wrong outdoor unit PCB mounted or defective
Troubleshooting
178
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check the indoor and outdoor unit
model numbers.
Indoor unit and outdoor unit
matched?
YES
Check the code numbers
(2P01234, for example) of the
indoor and outdoor unit PC boards
with the Parts List.
Matched compatibly?
YES
NO
NO
SiE12-411
Match the compatible
models.
Change for the specified
PC board (1) or (2).
Replace the indoor unit PC
board (1) (or the outdoor
(Q0347)
Service Diagnosis