Troubleshooting
4-41
4-4-13. Reverse phase / Loss phase detection (3-phase outdoor unit) (Error Code : E425 )
1. When power is on, it checks the power status used for 3-phase power compressor.
When the order of 3-phase L1(R) – L2(S) – L3(T) is changed (Reverse phase) or there is a phase that does not supply power (Loss phase), it will
display
and the air conditioner will stop operating.
1) Check the voltage on L1(R) – L2(S) phase/ L1(R) – L3(T) phase/ L2(S) – L3(T) phase.
2) When there is any terminal that does not have normal voltage, check the external
power of the air conditioner and take appropriate measures.
3) If 3-phase power is normal check the phase of the power wire using 3-phasetester.
If it shows reverse phase, change the current power wire connection.
4) After completing above, press reset key (K3) then check the power again.
3-phase tester
Содержание AC071MN4PKH
Страница 12: ...ProductSpecifications 2 9 2 3 4 Filter specifications Item Description CodeNo Remark FILTER AIR DB63 03764A ...
Страница 101: ...PCBDiagramandPartsList 5 4 5 1 3 Outdoor PCB Main PCB AC090 100 120 140MXAD H 1 2 3 4 5 6 8 9 10 11 12 ...
Страница 103: ...PCBDiagramandPartsList 5 6 Outdoor Unit PCB cont PF 4 INVERTER PCB SINGLE PHASE I AC090 100MXADKH 4 1 2 8 3 7 6 5 ...
Страница 105: ...PCBDiagramandPartsList 5 8 Outdoor Unit PCB cont PF 6 1 INVERTER PCB 3 PHASE I AC100MXADNH 1 2 8 4 6 5 3 7 ...
Страница 114: ...6 3 WiringDiagram ThisDocumentcannotbeusedwithoutSamsung sauthorization 3 phase PF 6 PF 6 1 Schematic Diagram ...
