Daikin R71FUV1 Service Manual page 298

Troubleshooting by Remote Controller
Troubleshooting
Caution
Check the installation
conditions.
Is the stop
valve open?
YES
Is the
compressor
coil disconnected or
is the insulation
defective?
NO
Turn OFF the power
supply, and then
disconnect the connection
between the compressor
and inverter.
CHECK 4
Continuity
check in the power
transistor (IGBT). Is
the continuity
normal?
YES
A
CHECK 4
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
Refer to P.464.
Si20-701_B
Open the stop
valve.
Replace the
compressor.
Replace the
outdoor unit
PCB.
291