Daikin R71FUV1 Service Manual page 386

Troubleshooting by Remote Controller
Caution
Check
of indoor unit
micro-computer
normal HAP. Is HAP
blinking?
YES
Check
of indoor unit
transmission error
HBP. Is HBP
blinking?
YES
A
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO (ON or OFF)
Turn OFF the power supply
and turn the power ON.
Is H1P blinking?
NO
Is H2P ON?
outdoor unit
NO
micro-computer
normal H1P
blink?
indoor-
outdoor
YES
transmission wire wired
correctly?
YES
YES
NO
Does
YES
Is
NO
Si20-701_B
NO
Replace the
indoor unit PCB
or correct power
supply system.
Resets normally.
External factor
(Noise, etc.).
Replace the
indoor unit PCB.
Wire correctly.
379