Daikin R48NUY2S - Page 126

Troubleshooting by Remote Controller Si20-701_B
119
Troubleshooting
NO
YES
NO
NO
NO
YES
Is the
connection of
connector on indoor
unit PCB normal?
Connect the
connector
accurately.
Turn OFF the power
supply and turn the power
ON.
↓
Press the power switch on
the remote controller.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
Is the
connection of
connector on adaptor
PCB normal?
Connect the
connector
accurately.
YES
Is the
connector on
adaptor PCB not short
circuited?
Short circuit X8A.
YES
Is the harness
disconnected?
Replace the
harness.
YES
Is there
an external
factor (noise, etc.)
except for a
fault?
Eliminate the
external factor.
A