Daikin R30PUY2S - Page 461

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