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

SiBE281013
4.26 Transmission System Abnormality (between Control and
Inverter PCB)
LC
Remote
Controller
Display
Applicable RZQG
Models
Method of Error Check whether transmission between control and inverter PCB is carried out normally.
Detection
Error Decision When the transmission is not carried out in a specified period of time or longer
Conditions
Supposed
Causes
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
Defective outdoor fan motor
Defective of fan motor connector contact
Defective control and inverter PCB
External factor (Noise, etc.)
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).
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