Daikin R71FUV1 Service Manual page 123

Si20-701_B
Troubleshooting
Caution
Is the
connector
between indoor
unit PCB and fan PCB
accurately
connected?
(∗1)
Confirm the condition of
transmission on indoor
unit PCB using field
setting mode. (∗2)
Under
above field
setting mode,
installation position
01
is "
Connect the connecter
and turn ON the power
again.
The error is
displayed again.
Note:
∗1. Pull out and insert the connecter once and check it is
absolutely connected.
116
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
".
YES
YES
NO
Troubleshooting by Remote Controller
Connect the
connector
accurately.
Replace the
indoor unit PCB.
Replace the fan
PCB.
Connect it and
operate (It is
possible to have
a cause, such as
instantaneous
blackout)