Unspecified Voltage (Between Indoor Unit And Outdoor Unit) - Daikin FTXS20G2V1B Service Manual

Troubleshooting
4.7 Unspecified Voltage (between Indoor Unit and Outdoor
Unit)
UA
Remote Control
Display
Method of
The supply power is detected for its requirements (different from pair type and multi type) by the
indoor / outdoor transmission signal.
Malfunction
Detection
Malfunction The pair type and multi type are interconnected.
Decision
Conditions
„ Wrong models interconnected
Supposed
„ Wrong wiring of connecting wires
Causes
„ Wrong indoor unit PCB or outdoor unit PCB mounted
„ Defective indoor unit PCB
„ Defective outdoor unit PCB
Troubleshooting
Check the combination of the
indoor and outdoor unit.
Check the code numbers
(2P01234, for example) of the
indoor and outdoor unit PCB with
the Parts List.
111
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
OK?
YES
Are the
connection wires connected
property?
YES
Matched
compatibly?
YES
NO
NO
NO
SiENBE04-808_A
Match the compatible models.
Correct the connection.
Change for the correct PCB.
Replace the indoor unit PCB
(or the outdoor unit PCB).
(R11707)
Service Diagnosis