TroubleshootingSamsung Electronics 77No. LED Display DisplayedPCB Assy Meaning Remarks Error CodeRed Green Yellow24 z | z MAIN/INVERTER Comp. wire missing error Check Comp. wire E46725 z MAIN/INVERTER Current sensor error Check Outdoor InverterPBA E46826 z | MAIN DC-Ling voltageSensor errorCheck Inputvoltage E46927 z | MAIN EEPROM read/write error Check EEPROM E47028 z | MAIN Outdoor EEPROM error Check Outdoor EEPROMdate E47129 | MAIN/INVERTER IPM(IGBT Module) or PFCM Temperature sen-sor ErrorCheck Outdoor InverterPBA E47430 z z MAIN/INVERTER PFC Overload Error Check Outdoor InverterPBA E48431 z | MAIN Input currentsensor error E48532 | MAIN/INVERTER IPM is over heated. Check Outdoor InverterPBA E50033 z | MAIN GAS Leak error Check indoor and outdoorunit model E55434 z | MAIN Water inlettemperature sensor errorCheck Waterinlet sensor E90135 z | MAIN Water outlettemperature sensor errorCheck Wateroutlet sensor E90336 z | MAIN Refriqerant gas inlettemperature sensor errorCheck Gasinlet sensor E90637 z | MAIN Mixing Valve Outlettemperature sensor errorCheck Mixing ValveOutlet sensor E916| Off Blink z On4-5-2 Troubleshooting for outdoor unit(con.)If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB.
