Daikin FAQ100CVEB - Outdoor Unit PCB Abnormality

ESIE15-13B Troubleshooting by Remote Controller
Service Diagnosis 155
4.23 Outdoor Unit PCB Abnormality
Remote
Controller
Display
L1
Applicable
Models
RZQG
Method of Error
Detection
 Detect error by current value during waveform output before compressor startup.
 Detect error by current sensor value during synchronized operation at the time of startup.
 Detect error using an MP-PAM series capacitor overvoltage sensor.
Error Decision
Conditions
 When over-current is detected at the time of waveform output during operating the
compressor
 When the current sensor error during synchronized operation
 When overvoltage occurs in MP-PAM
 In case of IGBT error
 In case of faulty in E
2
PROM
Supposed
Causes
 External factor (Noise, etc.)
 Defective outdoor unit fan motor
 Broken fuse
 Disconnection of compressor
 Defective outdoor unit PCB (A1P)
· IPM failure
· Current sensor failure
· MP-PAM failure
· Defective IGBT or drive circuit
· Defective inverter E
2
PROM