Daikin R71FUV1 Service Manual page 402

Troubleshooting by Remote Controller
error reoccur?
B
D
Does "U4"
NO
Does "U4" or
"UF" reoccur?
YES
After turning OFF the
power supply, correctly
insert the connector of the
fan motor and then restore
the power.
YES
NO
Si20-701_B
RZQ71B9,
RZQS71·100B
7 (1φ),
RZQ100~140B
8 (3φ):
Replace the
outdoor PCB
(A1P).
RZQ100~140C7,
RZQS125·140
C7 (1φ):
Replace the
outdoor unit
PCB (A1P).
Replace the
indoor unit PCB.
There is no
problem with the
unit. An external
factor (noise,
etc.) other than
unit failure may
be the cause.
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