Transmission Error (Between Indoor Units And Outdoor Units) - Daikin SkyAir RZR-P Series Service Manual

Troubleshooting by Remote Controller
2.45 Transmission Error (between Indoor Units and Outdoor
Units)
U4
Remote
Controller
Display
Applicable All indoor models
Models RZR, RZQ
Method of Error Micro-computer checks if transmission between indoor and outdoor units is normal.
Detection
Error Decision
When transmission is not carried out normally for a certain amount of time or longer
Conditions
 Wiring indoor-outdoor transmission wire is incorrect.
Supposed
 Defective power supply
Causes
 Burning out fuse
 Defective outdoor unit PCB
 Defective indoor unit PCB
 Defective outdoor unit fan motor
 External factor (Noise, etc.)
Service Diagnosis
SiUS281117
165