Daikin VRV RXYQ72-384XAYCA Service Manual page 378

Check
371
2. Check the transmission
wiring for continuity.
Indoor-outdoor unit
If there is continuity, the
transmission wiring
indoor-outdoor unit
transmission has no
broken wires in it.
1. Short circuit
between the
outdoor-outdoor
unit terminal
parts.
Outdoor-outdoor unit
2. Short circuit between
transmission wiring
the indoor-outdoor unit
terminal parts.
Unified ON/OFF controller Central remote controller
SiUS342004EB
1. Check the transmission
wiring for continuity.
If there is continuity, the
outdoor-outdoor unit
transmission has no broken
wires in it.
Part 6 Service Diagnosis