Daikin VRVII - Page 281

Troubleshooting by Indication on the Remote Controller
276
NO
The "U2"
error recurs.
YES
Check the
harness, and
then replace it if
necessary.
End of
measures:
∗ The error may
temporarily
result from
onsite causes.
Causes:
Instantaneous
power failure
(open phase),
noises, or else.
C
Power ON
NO
Stop
(standby)
when the compressor
starts up.
YES
Recheck for the
power supply. If
there is no
problem with the
power supply,
replace the main
PCB.
∗If the PCB
replaced is
badly damaged,
compressor is
likely to get
defective. To
make sure,
recheck the
compressor.