Daikin R71FUV1 Service Manual page 421

Si20-701_B
A
414
Troubleshooting by Remote Controller
B
External control adaptor for outdoor unit
•Is this PCB energized?
•Does the cool/heat unified address match?
Outdoor unit (unified master unit)
•Is this energized?
•Does the cool/heat unified address match?
YES
Does an
error occur when
the cool / heat selector
is set to "IND?"
YES
NO
Replace the
external control
adaptor for
outdoor unit.
Replace the
outdoor unit PCB
(A1P).