Sharp Air Conditioner Error Codes: Sharp Air Conditioner Error Codes Error Codes Problem EE Buttons are locked E0 Water pump malffunction E1 High pressure protection of compressor E2 Indoor anti-frozen of compressor E3 Low pressure protection of compressor E4 Air discharge high-temperature protection of compressor E5 Overload protection of compressor E6 Transmit malfunction E8 Indoor fan protection E9 Water flow protection FF Connected control communications Failure F0 Malfunction of indoor environment sensor at air return vent F1 Evaporator sensor malfunction F2 Condenser sensor malfunction F3 Outdoor environment sensor malfunction F4 Malfunction of air discharge sensor F5 Malfunction of environment sensor on displayer ee Malfunction of outdoor drive memory chip. Outdoor drive board. H3 Compressor over load protection. Compressor overload switch. H4 Overload protection. Evaporator temperature, condenser temperature. H6 Malfunction of outdoor fan motor. Outdoor fan motor. U7 Dire...