Daikin VRVII Manual page 275

Troubleshooting
Caution
Is
connection
wire connected
between the
connector?
Turn ON again.
Turn the
magnetic contact
switch ON.
The
voltage
between the
P2 (or P3) and
N3 terminals is 320
VDC (Y1, YL) or more
and 190 VDC (TL) or
less when the
compressor is
running.
270
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
YES
NO
YES
NO
YES
Repair wiring.
A
Replace the
inverter PCB.
Monitor field
power supply.