Daikin R71FUV1 Service Manual page 442

Troubleshooting by Remote Controller
micro-computer
normal monitors (HAP)
on all indoor unit
PCB's blink?
Turn the power supply
OFF once, and restart.
A
Do the
YES
between indoor-
indoor and indoor-
outdoor correctly
connected?
supply for the
option device
connected from the
terminal block (X2M)
between 1 and 2
connecting indoor
and outdoor of
power supply
PCB correctly
connected?
VAC between
No.1 and 2 of X2M
terminal (indoor
B
NO
Are
the wires
YES
Is
the
power
the indoor
unit?
YES
Is the
YES
Is 220
unit)?
NO
Si20-701_B
NO
Connect
correctly.
NO
Connect
correctly.
NO
Connect
correctly.
YES
Check the
power supply
system inside
the indoor unit.
Could be
incorrect
wiring.
Check again.
435