Daikin R71FUV1 Service Manual page 164

Troubleshooting by Remote Controller
Troubleshooting
Caution
[In cooling]
Are
the
characteristics of
the outdoor unit
intermediate
thermistor
normal?
YES
The
outdoor unit
heat exchanger is
clogged or
blocked.
NO
The
outdoor unit fan
is rotating during
operation.
YES
Are the
operation of
electronic expansion
valve normal?
YES
CHECK 4
High pressure is
too high.
NO
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
NO
YES
Si20-701_B
Replace the
outdoor unit
intermediate heat
exchanger
thermistor.
Clean or remove
the clogging
item.
Remove the
foreign matter.
Replace the fan
motor.
Troubleshooting
"E9"
CHECK 10
Replace the
outdoor unit
PCB.
If error is
displayed again,
replace the
inverter PCB.
157