Outdoor Units - Daikin R71FUV1 Service Manual

Troubleshooting by Remote Controller
Supposed Causes
Defective transmission wiring between the indoor and

outdoor units

Mismatching of wiring and piping
Refrigerant shortage
Clogged refrigerant piping system
Troubleshooting
Caution
Does
"UF" appear
when the power is
turned ON?
Except RZQG
Continue
the condition
that the blinking
interval of HAP on
outdoor unit PCB is
short (∗1) for more
than one
minute.
phase of
transmission wiring
between the indoor and
outdoor units is
incorrect.
Is the
connection of
transmission wiring
and piping between the
indoor and outdoor
units
matched?
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
The phase of
NO
transmission wiring
RZQG between the indoor and
outdoor units is incorrect.
The
NO
YES
A
YES
YES
NO
Si20-701_B
Correctly connect
transmission
wiring between
the indoor and
outdoor units.
Correctly
connect
transmission
wiring between
the indoor and
outdoor units.
Match the
connection of the
transmission
wiring and piping
between the
indoor and
outdoor units.
451