Daikin R71FUV1 Service Manual page 308

Troubleshooting by Remote Controller
Troubleshooting
Output current check
Caution
Power OFF
Connect the compressor
lead wires then restart
the operation.
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Is
the stop valve
open?
YES
Check if the
compressor lead wires
are normal.
YES
Check
if the wiring
and connection to the
compressor are
normal.
YES
Insulation
resistance of
the compressor is
100 kΩ or
below.
NO
Compressor
coils are disconnected.
NO
CHECK 16
Check if the power
transistor is
normal.
YES
A
NO
Open the stop
valve.
NO
Replace the
compressor lead
wires.
NO
Correct the
wiring and
connection.
YES
Replace the
inverter
compressor.
YES
Replace the
inverter
compressor.
NO
Replace the
inverter PCB.
Si20-701_B
301