X X Inverter compressor drive protection P4 ★ —— X Mode conflict P5 —— ★ flash at 2.5Hz, light, X extinguished, at 0.5Hz ★ Note: Digital display is only available for duct type. Oasis series: ODU Operation Timer Display LED STATUS lamp lamp —— X E0 Indoor EEPROM malfunction ★ 1 time E2 X E1 Communication malfunction between indoor and outdoor units ★ 2 times —— ★4 times X E3 Indoor fanspeed malfunction. —— Indoor room temperature sensor open or circuit. X E4 ★ 5 times —— Evaporator coil temperature sensor open or short circuit. X E5 ★ times E4 Outdoor temperature sensor open or circuit. ★2 times F1 E4 F2 Condenser coil temperature sensor open or circuit. ★3 times E4 Compressor discharge pipe sensoropenor circuit. F3 ★4 E0 ★5 times F4 OutdoorEEPROM malfunction E8 ★6 times F5 Outdoor fan has been out of control E4 F6 Indoor unit coil outlet temp. sensor open or short circuit. ★7 P6 ★1 ★ P0 Inverter module (IPM) malfunction or IGBT over-strong current protection times E5 ★2 times ★ P1 Voltage(High voltage or low voltage ) protection. P0 P2 High temperature protection of compressor top (only for M3OD-27HRDN1-M) ★3 ★ —— P4 Compressor drive error ★5 times ★ —— ★6 times ★ P5 Mode conflict ★ flash, light, X extinguished 8.3 Outdoor Unit Display 8.3.1 Outdoor unit point check function There is a check switch in outdoor PCB. Push the switch SW1 to check the states of unit when the unit is running. The digital display tube will display the follow procedure when push SW1 each time.
★ X X Inverter compressor drive protection P4 —— ★ X Mode conflict P5 —— ★ flash at 2.5Hz, light, X extinguished, at 0.5Hz Note: Digital display is only available for duct type. Oasis series: Operation lamp Timer lamp Display LED STATUS ODU ★ 1 time X E0 Indoor EEPROM malfunction —— ★ 2 times X E1 Communication malfunction between indoor and outdoor units E2 ★4 times X E3 Indoor fanspeed malfunction. —— ★ 5 times X E4 Indoor room temperature sensor open or circuit. —— ★ times X E5 Evaporator coil temperature sensor open or short circuit. —— ★2 times F1 Outdoor temperature sensor open or circuit. E4 ★3 times F2 Condenser coil temperature sensor open or circuit. E4 ★4 F3 Compressor discharge pipe sensoropenor circuit. E4 ★5 times F4 OutdoorEEPROM malfunction E0 ★6 times F5 Outdoor fan has been out of control E8 ★7 F6 Indoor unit coil outlet temp. sensor open or short circuit. E4 ★1 times ★ P0 Inverter module (IPM) malfunction or IGBT over-strong current protection P6 ★2 times ★ P1 Voltage(High voltage or low voltage ) protection. E5 ★3 ★ P2 High temperature protection of compressor top (only for M3OD-27HRDN1-M) P0 ★5 times ★ P4 Compressor drive error —— ★6 times ★ P5 Mode conflict —— ★ flash, light, X extinguished 8.3 Outdoor Unit Display 8.3.1 Outdoor unit point check function There is a check switch in outdoor PCB. Push the switch SW1 to check the states of unit when the unit is running. The digital display tube will display the follow procedure when push SW1 each time.
multi-zone-service-manual.docx