Daikin VRVIII-S Service Manual page 185

Troubleshooting by Indication on the remote control
Troubleshooting
174
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
YES
"U9" has been displayed for 2
minutes or more.
NO
Turn on all indoor units.
The "UA" display blinks on the
YES
remote controls of other units
within the same refrigerant
system.
NO
The "A1" display blinks
YES
on the remote controls
of other units within the
same refrigerant
system.
NO
The "A9" display
blinks on the remote
YES
controls of other units
within the same
refrigerant system.
NO
The "U4"
display blinks on
the remote controls of
other units within the
same refrigerant
system.
NO
YES
SiENBE34-703
Re-diagnose by display after
passage of 2 minutes or more.
Refer to failure diagnosis for "UA"
malfunction code.
Refer to failure diagnosis for "A1"
malfunction code.
Refer to failure diagnosis for "A9"
malfunction code.
Refer to failure diagnosis for "U4"
malfunction code.
Refer to failure diagnosis for "U5"
malfunction code.
(V2826)
Troubleshooting