Power Supply Voltage Abnormality - Daikin GQI-Eco Series Service Manual

ESIE15-13B

4.33 Power Supply Voltage Abnormality

U2
Remote
Controller
Display
RZQG
Applicable
Models
The error is detected according to the voltage of main circuit capacitor built in the inverter and
Method of Error
power supply voltage.
Detection
When the voltage of main circuit capacitor built in the inverter and power supply voltage drop or
Error Decision
when the power failure of several tens of ms or more is generated.
Conditions
 Drop in power supply voltage
Supposed
 Defective outdoor fan motor
Causes
 Instantaneous power failure
 Defective outdoor unit inverter PCB
 Main circuit parts damaged
Service Diagnosis
Troubleshooting by Remote Controller
171