Daikin VRVII Manual page 265

Troubleshooting
Caution
There is
an open phase
at the power supply
terminal of the
outdoor
(outside)
unit.
NO
Operation
is normal if one
place of power supply
line phase is
replaced.
NO
260
Troubleshooting by Indication on the Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
YES
Rectify the open
phase.
Requires
inspection of field
power supply
section.
Reverse phase
Countermeasure
of the problem is
completed by
phase
replacement.
Replace the
outdoor (outside)
unit PCB.