Power Supply Insufficient Or Instantaneous Abnormality - Daikin SkyAir RZR-TA Series Service Manual

SiUS281811EA

4.48 Power Supply Insufficient or Instantaneous Abnormality

U2
Error Code
Applicable All outdoor units
Models
Method of Error The main circuit capacitor voltage of the inverter and the power supply voltage is checked.
Detection
Error Decision
The main circuit capacitor of the tested inverter has abnormal voltage or the power supply voltage
Conditions is abnormal.
Supposed
 Insufficient power supply
Causes  Instantaneous power failure
 Defective outdoor fan motor
 Defective outdoor unit PCB
Part 6 Service Diagnosis
Troubleshooting by Error Codes
277