Daikin R71FUV1 Service Manual page 325

Si20-701_B
Troubleshooting
Caution
Power
ON
Disconnect the cable from
the compressor, and then
Power check the compressor for
the insulation resistance.
OFF
318
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Are
the fan
transmission wire
connectors wrongly
connected?
YES
Check
whether or not
the power supply
voltage between L2 and N
falls in the range of
220 to
240VAC?
YES
Is the type
(PC No.) of the fan
inverter correct?
YES
Is the
PCB address of
the compressor inverter
correct?
YES
The
insulation
resistance is low (i.e., not
more than
100kΩ.)
NO
A
Troubleshooting by Remote Controller
NO
NO
NO
NO
YES
Connect the
connectors to the
corresponding
color (black or
yellow).
Onsite cause.
Correct the
wiring.
Mount the
correct type of
fan inverter.
Mount the
correct type of
compressor
inverter.
Replace the
compressor.