Daikin Super Multi Plus E-Series FTXG25EV1BW Service Manual page 428

Troubleshooting for Outdoor Unit
Troubleshooting
416
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
U9
" " has
been displayed for 2
minutes or more?
NO
Turn on all indoor units.
Does
UA
the " "
display blinks on
the remote controllers of
other units within the
same refrigerant
system?
NO
Does
A1
the " "
display blink on the
remote controllers of other
units within the same
refrigerant
system?
NO
Does
A9
the " "
display blink on the
remote controllers of other
units within the same
refrigerant
system?
NO
Does
U4
the " "
display blink on the
remote controllers of other
units within the same
refrigerant
system?
NO
YES
YES
YES
YES
YES
SiBE18-821_C
Re-diagnose by display after
passage of 2 minutes or
more.
Refer to troubleshooting for
UA
" " error code.
Refer to troubleshooting for
A1
" " error code.
Refer to troubleshooting for
A9
" " error code.
Refer to troubleshooting for
U4
" " error code.
Refer to troubleshooting for
U5
" " error code.
(R13049)
Troubleshooting