Daikin R71FUV1 Service Manual page 418

Troubleshooting by Remote Controller
Troubleshooting
Caution
Using 2-
remote controllers
control.
NO
All
indoor PCB
micro-computer
monitors
blink.
YES
Replace the remote
controller and restart
operation.
Is it
normal?
NO
Replace the indoor unit
PCB, and then restart.
Is it
normal?
NO
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
SS1 of
both remote
controllers is set to
"MAIN."
NO
NO
Operation
returns to normal
when the power is
turned OFF
momentarily.
YES
YES
YES
NO
NO
YES
Si20-701_B
Set one remote
controller to
"SUB"; turn the
power supply
OFF once and
then restart.
Replace the
indoor unit PCB.
There is
possibility of
error caused by
noise. Check the
surrounding area
and turn ON
again.
Normal
Normal
There is
possibility of
error caused by
noise. Check the
surrounding area
and turn ON
again.
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