Daikin 2MXS40H2V1B Service Manual page 169

SiBE121123_A
Troubleshooting
Note: Check the following connector.
Wall mounted type
Floor standing type
Floor / ceiling suspended dual type
Duct connected type
Service Diagnosis
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
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
Terminal board ~ Control PCB (H1, H2, H3)
Terminal board ~ Control PCB (H1, H2, H3)
S36 ~ S37
Terminal board ~ Control PCB (H1, H2, H3)
Troubleshooting for RA Indoor Unit
Match the compatible
models.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB.
Completed.
NO
Correct the power
supply.
YES
Replace the indoor unit
PCB.
Completed.
Completed.
(R15310)
158