Abnormal Power Supply Voltage - Daikin SkyAir Super Inverter 70 D Series Service Manual

SiE25-110

6.36 Abnormal Power Supply Voltage

U2
Remote
Controller
Display
LED Display
Refer to P.133
Applicable
RZP71~140D
Models
Method of Malfunction is detected according to the voltage of main circuit capacitor built in the inverter and
Malfunction power supply voltage.
Detection
Malfunction
When the voltage of main circuit capacitor built in the inverter and power supply voltage drop
Decision (150-170 VAC) or when the power failure of several tons of ms or longer is generated.
*
Conditions
Supposed
Causes
Troubleshooting
Remote controller does not decide the abnormality.
Drop in power supply voltage (180 V or less)
Instantaneous power failure
Inverter open phase (Phase T)
Faulty main circuit wiring
Faulty outdoor unit PC board
Main circuit parts damaged
Troubleshooting by Remote Controller Display / LED Display
179