Daikin R71FUV1 Service Manual page 461

Si20-701_B
Troubleshooting
Caution
Does
"UF" appear
when the power is
turned ON?
NO
Is
the
connection of
transmission wiring
and piping between the
indoor and outdoor
units matched?
YES
CHECK 12
Is the refrigerant
level proper?
YES
CHECK 11
CHECK 12
454
Troubleshooting by Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
The phase of
transmission wiring
between the indoor and
outdoor units is incorrect.
NO
NO
Refer to P.477.
Refer to P.478.
Correctly connect
transmission
wiring between
the indoor and
outdoor units.
Match the
connection of the
transmission
wiring and piping
between the
indoor and
outdoor units.
Recharge a
proper amount of
refrigerant after
refrigerant
collection and
vacuum drying.
Check 11
Check the
refrigerant piping
system for
clogging.