Gree Split AC Error Codes

b5 Gree Split AC b5 means the outdoor refrigerant pipe temperature sensor has a fault or failed … b7 Gree Split AC b7 means the crankcase heater (or outdoor pipe heater) has a fault or is not … C5 Gree Split AC C5 means the jumper cap on the indoor control board is missing, wrong, or … E1 Gree Split AC E1 means the refrigerant pressure inside the system has exceeded safe limits. … E2 Gree Split AC E2 means the indoor evaporator coil is getting dangerously cold and is about to … E4 Gree Split AC E4 means the hot gas leaving the compressor is above safe temperature limits. … E5 Gree Split AC E5 means the AC is drawing more electrical current than is safe. The system … E6 Gree Split AC E6 means the indoor and outdoor units have lost communication with each other. … EU Gree Split AC EU means the four-way valve area temperature has hit its limit and the system … F2 Gree Split AC F2 means the outdoor air temperature sensor has an open or short circuit. … F3 Gree Split AC F3 means the temperature sensor on the outdoor condenser coil has a fault. This … F4 Gree Split AC F4 means the sensor monitoring the outdoor discharge pipe temperature has a … F5 Gree Split AC F5 means the exhaust (discharge) temperature sensor has an open or short … F6 Gree Split AC F6 means the system has detected overheating and automatically slowed down the … F8 Gree Split AC F8 means the AC has detected excess current draw and reduced the compressor … F9 Gree Split AC F9 means the compressor is drawing dangerously high current and protection has … FC Gree Split AC FC means both the compressor and the outdoor fan motor have malfunctioned … FE Gree Split AC FE is not a fault — it means the AC is running a normal defrost cycle on the … H0 Gree Split AC H0 means the compressor failed to start within the allowed time after receiving … H1 Gree Split AC H1 is not a fault — it means the AC is running its automatic defrost or … H2 Gree Split AC H2 is not a fault — it means the AC is running its electrostatic dust removal … H3 Gree Split AC H3 means the compressor is drawing excessive current and its internal overload … H4 Gree Split AC H4 means both the indoor and outdoor coils are in an overload protection state … H5 Gree Split AC H5 means the Intelligent Power Module — the inverter component that drives the … H6 Gree Split AC H6 means the outdoor condenser fan is not spinning or is running incorrectly. … H7 Gree Split AC H7 means the inverter compressor has lost synchronisation and cannot maintain … HE Gree Split AC The HE code means the indoor unit's EEPROM memory chip has a fault. The chip … L3 Gree Split AC L3 means the outdoor unit's DC fan motor is not running or not spinning fast … LC Gree Split AC LC means the compressor tried to start but failed after multiple attempts. This … LD Gree Split AC LD is a critical error — the compressor is receiving incomplete or unbalanced … LE Gree Split AC LE is a critical error — the compressor drew a dangerous current spike far above … P5 Gree Split AC P5 means the compressor current exceeded the safe limit measured by the outdoor … P6 Gree Split AC P6 means the indoor main board and the outdoor inverter drive board cannot … P7 Gree Split AC P7 means the IPM (Intelligent Power Module) sensor circuit has a fault. The IPM … P8 Gree Split AC P8 means the PFC (Power Factor Correction) circuit in the outdoor unit has … PC Gree Split AC PC means either the indoor control panel (display board) has a circuit fault, or … PH Gree Split AC PH means the DC voltage inside the outdoor inverter circuit is too high. This … PL Gree Split AC PL means the DC voltage inside the outdoor inverter circuit is too low to run … PU Gree Split AC PU means the startup charge circuit for the main inverter capacitor is not … U1 Gree Split AC U1 means the inverter drive detected that the compressor rotor is losing its … U2 Gree Split AC U2 means the system detected that the compressor wiring phase order is reversed. … U3 Gree Split AC U3 means the voltage inside the IPM (Intelligent Power Module) is too high for … U4 Gree Split AC U4 means the system detected the compressor spinning in reverse during … U5 Gree Split AC U5 means the circuit that measures AC current on the outdoor PCB is not working … U7 Gree Split AC U7 means the four-way valve (which switches between cooling and heating mode) … U8 Gree Split AC U8 means the sensor monitoring the exhaust temperature at the compressor …