Troubleshooting for Outdoor Unit SiAU18-715
394 Troubleshooting
7.32 Malfunction of Transmission between Indoor and
Outdoor Units in the Same System
Remote
Controller
Display
U9
Applicable
Models
AII indoor unit models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Malfunction of transmission within or outside of other system
Malfunction of electronic expansion valve in indoor unit of other system
Defect of PCB of indoor unit in other system
Improper connection of transmission wiring between indoor and outdoor unit
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