What is the problem with the air conditioner showing e 1?

I. E 1 The failure causes are as follows:

1. The protection circuit board is damaged due to the phase sequence current of the outdoor unit.

2. Too much freon will cause the high voltage protector to disconnect.

3. The outdoor fan is broken, and the outdoor fan of the air conditioner does not turn, which leads to the disconnection of the protector.

There is too much dust in the outdoor unit, which is too dirty to protect the air conditioner from overheating.

The machine has been used for a long time, and there is snow leakage in the refrigeration system. After the treatment, refrigerant is added or the compressor is accidentally replaced, and foreign substances enter the refrigeration system, causing capillary blockage, and throttling, cooling and depressurization cannot be realized. As a result, the high pressure and low pressure of the air conditioner are too high and the pressure protector is disconnected. ?

It can be analyzed according to the meaning of the fault code. Generally, the reasons for this failure are: poor heat dissipation of outdoor unit, non-rotation or slow rotation of outdoor unit fan, etc. The solution is to change the position of fan, fan, capacitor and high voltage protector.

Second, Gree air conditioner displays e 1 air conditioner fault code, which may also be a communication fault between indoor unit and outdoor unit.

(1) First, judge whether the air conditioner fails after running for a period of time or when it is turned on, so as to distinguish between system failure and circuit failure.

(2) The fault code e 1 displayed by the air conditioner indicates that the compressor current is too large, the compressor is overheated, the exhaust temperature is high, and the module is protected. Check whether the overload protector is disconnected and the compressor temperature sensor is short-circuited.

(3) At this time, open the enclosure of the indoor unit and observe whether the green indicator light on the circuit board of the indoor unit is on. If it is flashing, it means that the outer plate is faulty; if it is not flashing, it means that the inner plate is broken. Because the indoor unit will only turn on the green light when it receives the pulse signal from the external unit, and at the same time it will send a signal to the indoor unit of the air conditioner, so that the indoor unit and the outdoor unit can communicate.