Troubleshooting SiBE12-908145 Service Diagnosis2.26 DC Voltage / DC Current Sensor AbnormalityRemoteController DisplayH8Method ofMalfunctionDetectionDC voltage or DC current sensor system abnormality is identified based on the compressoroperation frequency and the input current detected by the product of DC current and DCvoltage.MalfunctionDecisionConditionsWhen the compressor operation frequency is more than 56 Hz (40 class) or 40 Hz (50 class),and when the input current is less than 0.25 A(Input current is below 0.5 A) The unit shuts down when the fault occurs 4 times. Fault counter is reset to zero if the unit does not stop during accumulated compressoroperation time of 60 minutes after restored from fault conditions.SupposedCauses Defective outdoor unit PCB Defective current transformerTroubleshootingReplace the outdoor unit PCB.CautionBe sure to turn off power switch before connect or disconnect connector,or parts damage may be occurred.
