Daikin R71FUV1 Service Manual page 126

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