Haier AU482FIERA Installation & Maintenance Instructions Manual page 56
R410a heat pump
mrviii-s (g)
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Also See for AU482FIERA:
- Design, installation & maintenance instruction (70 pages) ,
- Installation manual (146 pages)
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[22] Communicating fault of indoor and outdoor units
Check if the
communication wiring
PQ between indoor and
outdoor units is short
circuit or short circuit to
ground
No
Check if the indoor
unit address setting by
manual
Yes
Replace PCB
Yes
Replace the
communication wiring
Setting the indoor
No
communication
address by manual
54
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