Maintenance Tips & GREE Error Codes

An air conditioner's filters, coils, and fins require regular maintenance for the unit to function effectively and efficiently throughout its years of service. Neglecting necessary maintenance ensures a steady decline in air conditioning performance while energy use steadily increases.

The most important maintenance task that will ensure the efficiency of your air conditioner is to routinely replace or clean its filters. Clogged, dirty filters block normal airflow and reduce a system's efficiency significantly. With normal airflow obstructed, air that bypasses the filter may carry dirt directly into the evaporator coil and impair the coil's heat-absorbing capacity. Replacing a dirty, clogged filter with a clean one can lower your air conditioner's energy consumption by 5% to 15%.

Some types of filters are reusable; others must be replaced. They are available in a variety of types and efficiencies. Clean or replace your air conditioning system's filter or filters every month or two during the cooling season. Filters may need more frequent attention if the air conditioner is in constant use, is subjected to dusty conditions, or you have fur-bearing pets in the house.

Error Codes Malfunction

E0 Water pump malfunction

E1 High pressure protection of compressor

E2 Indoor anti-frozen protection

E3 Low pressure protection of compressor

E4 Air discharge high-temperature protection of compressor

E5 Overload protection of compressor

E6 Communication error

E8 Indoor fan protection

E9 Water flow protection

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