What does e 1 on the air conditioner mean?

Represents high voltage protection caused by communication failure between indoor unit and outdoor unit.

E 1 is the fault code of air conditioner (compressor overcurrent protection, compressor overheating protection, outdoor unit exhaust temperature protection, outdoor unit phase sequence current protection circuit board is broken).

The reasons for the failure are as follows:

1, Freon causes the high voltage protector to act (disconnect).

2. The machine has been used for a long time, and there is a leak in the refrigeration system. Refrigerant is often added after treatment or the compressor is accidentally replaced. Dirt enters the refrigeration system and causes capillary blockage, which can not achieve throttling, refrigeration and pressure reduction. When the high pressure of air conditioner is too high and the low pressure is too low, the pressure protector will act (disconnect).

3. If the outdoor fan is broken (note: the starting capacitor of the fan is broken and the fan is not moving), it will not turn, but will turn to the protector (disconnected).

4. The outdoor unit phase sequence current protection circuit board is broken.

5. Excessive dust and dirt accumulated in the condenser of outdoor unit will lead to overheating protection of air conditioner.

Solution: It is necessary to clean the condenser of the outdoor unit of the air conditioner. It is recommended to find a professional to clean it.

Extended data:

Air conditioning fault code

E 1 system high voltage protection

E2 internal machine antifreeze protection

E3 system under-voltage protection

E4 compressor exhaust protection

E5 Low Voltage Overcurrent Protection

E6 communication failure

E7 mode conflict

E8 high temperature protection

E9 cold air protection

F 1 Open circuit and short circuit at room temperature

F2 inner tube temperature open circuit, short circuit

F3 outer ring temperature open circuit, short circuit

F4 condenser tube temperature open circuit, short circuit

F5 external exhaust pipe is open and short.

H 1 defrosting

H2 electrostatic dust removal protection

H3 compressor overload protection

H4 system anomaly

H5 module guarantees Gree air-conditioning maintenance.

FC sliding door failure

References:

Baidu encyclopedia-air conditioning fault code