Daikin R48NUY2S - Page 412

Troubleshooting by Remote Controller Si20-701_B
405
Troubleshooting
YES
NO
NO
YES
NO
NO
YES
Control
by 2 remote
controllers
All
indoor unit
PCB micro-computer
normal monitors
blinking
Using
multicore
transmission
wiring between indoor
unit and remote
controller
SS1 of
both remote
controllers is set to
"Main."
Set one of the
remote
controllers to
"Sub," turn OFF
the power supply
temporarily, then
restart operation.
Change to
double-core
independent
cable.
Replace the
remote controller
PCB or indoor
unit PCB.
YES
NO
Resets
normally when power
supply is turned OFF
temporarily.
Replace the
indoor unit PCB.
Error could be
produced by
noise. Check the
surrounding area
and restart
operation.
YES
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.