Daikin VRVII Manual page 328

Troubleshooting by Indication on the Remote Controller
Troubleshooting
Caution
Check 3
Check 3
type of the outdoor unit
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Diagnosis Flow 1
Check 4
The
number
of indoor units
connected to the
same refrigerant circuit
system should not
be more than
64 units.
NO
Diagnosis Flow 2
Check 4
Check if
the refrigerant
corresponds to that
of the indoor
unit.
NO
YES
Replace the
outdoor unit main
PCB.
The number of
indoor units
exceeds the
standard. Check
the connection to
correct.
YES
Replace the
outdoor unit main
PCB.
Match the
refrigerant types
of the outdoor
unit and the
indoor unit.
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