Daikin VRVII Manual page 343

Troubleshooting by Indication on the Remote Controller
A B
Was the
centralized control NO
Check whether
group No. for indoor
or not there are
unit changed?
no problems with
the transmission
wiring length,
YES
types of cables
and wires,
number of units
connected, and
others. If no
problems,
replace the
indoor unit PCB.
Reset the power
supplies of every
centralized
control
equipment.
For the intelligent
Touch controller,
register the air
conditioner again
while in DIII-NET
test run menu.
338