Daikin CTXG09QVJUW Service Manual page 148

Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series
Troubleshooting
Note: Check the following connector.
CTXG, CTXS, FTXS, FVXS series
CDXS, FDXS series
136
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Combination of
the indoor and outdoor
unit matched?
YES
Check the connection of
connectors. (Refer to Note)
OK?
NO
Correct the connection.
Error repeats?
NO
Model Type
NO
∗ To secure the connection,
disconnect the connectors once
and then reconnect.
YES
Check the power supply
voltage.
Voltage as rated?
YES
Start operation.
Error repeats?
NO
YES
Check the power supply
voltage.
Voltage as rated?
YES
Start operation.
Error repeats?
NO
Terminal strip ~ Control PCB (H1, H2, H3)
Terminal block ~ Control PCB (H1, H2, H3)
SiUS121632EA
Match the compatible
models.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB (control PCB).
Completed.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB (control PCB).
Completed.
Completed.
Connector
Service Diagnosis
(R23407)