Transmission System Abnormality (Between Control And Inverter Pcb) - Daikin GQI-Eco Series Service Manual

ESIE15-13B
4.28 Transmission System Abnormality (between Control and
Inverter PCB)
LC
Remote
Controller
Display
RZQG
Applicable
Models
Check whether transmission between control and inverter PCB is carried out normally.
Method of Error
Detection
When the transmission is not carried out in a specified period of time or longer
Error Decision
Conditions
 Defective outdoor fan motor
Supposed
 Defective of fan motor connector contact
Causes
 Defective control and inverter PCB
 External factor (Noise, etc.)
Troubleshooting
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Is the fan motor
connector connected?
YES
Disconnect the fan motor connector,
and turn ON again.
E7
" " is displayed?
LC
(" " is not displayed?)
NO
Service Diagnosis
NO
YES
Troubleshooting by Remote Controller
Connect the connector.
Replace the fan motor.
Inverter transmission
defective due to the error
of fan motor.
Replace the outdoor PCB
(A1P).
165