Daikin Super Multi Plus E-Series - Malfunction of Transmission between Indoor and Outdoor Units in the same System

Troubleshooting for Outdoor Unit SiEN18-622
396 Troubleshooting
7.32 Malfunction of Transmission between Indoor and
Outdoor Units in the Same System
Remote Control
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