Daikin VRVII Manual page 201

A
CHECK 4
Check if the power
transistor is
normal.
CHECK 4
Check if the power
transistor of the fan
driver is
normal.
CHECK 4
196
Troubleshooting by Indication on the Remote Controller
NO
YES
resistance of the
compressor is
NO
YES
Refer to P.354.
Check if
insulation
100kΩ or
more.
YES
NO
Replace the
compressor and
compressor
inverter PCB at
the same time.
Replace the
inverter PCB.
Replace the
compressor
inverter PCB and
fan inverter PCB.
Replace the
inverter PCB.