Daikin RMXS-L Series Service Manual page 166

Troubleshooting for CTXS, FTXS, CDXS, FDXS Series
Troubleshooting
Note: Check the following connector.
CTXS/FTXS series
CDXS/FDXS series
157
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the combination of the
indoor and outdoor unit.
OK?
YES
Check the connection of
connectors (See Note.).
OK?
NO
Correct the connection.
Error repeats?
NO
Model Type
Terminal board ~ Control PCB (H1, H2, H3)
Terminal board ~ Control PCB (H1, H2, H3)
NO
∗ To secure the connection,
once disconnect the connector
and then reconnect it.
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
Connector
SiUS181305E
Match the compatible
models.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB (1).
Completed.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB (1).
Completed.
Completed.
Troubleshooting
(R18860)