Daikin VRVII Manual page 289

Troubleshooting
Caution
Has
the check
operation performed
on outdoor unit
PCB?
YES
284
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.
NO
Press and hold
BS4 on the
outdoor unit main
PCB for 5
seconds or more,
or turn ON the
field setting
mode 2-3 to
conduct a check
operation.
Performs the
check operation
again and
completes the
check operation.
When a leakage
detection
function is
needed, normal
operation of
charging
refrigerant must
be completed.
And then,
start once again
and complete a
check operation.