Transmission Error Between Indoor And Outdoor Unit - Daikin ZQG71~140L7V1B Service Manual

ESIE12-06

4.32 Transmission Error between Indoor and Outdoor Unit

U4
Remote
Controller
Display
Applicable
RZQG
Models
Method of Error
The error is generated when the micro-processor detects that the transmission between the
Detection indoor and the outdoor unit is not normal over a certain amount of time.
Error Decision
When the transmission is not carried out normally over a certain amount of time.
Conditions
Supposed
 Wiring indoor-outdoor transmission wire is incorrect
Causes  Defective indoor unit PCB
 Defective outdoor unit PCB
 Burning out fuse
 Defective outdoor fan motor
 External factor (Noise, etc.)
 Defective power supply
 Disconnection of optional equipments
Service Diagnosis
Troubleshooting by Remote Controller
181