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1, air conditioning settings. For example, if the remote control mode is air supply, heating, dehumidification, etc. At this time, the outdoor unit will not start. But the air conditioner is still in standby state and will always flash green.
2. The computer board is vulnerable to electromagnetic interference. In this case, the machine can't start normally, but the machine is electrified normally. Therefore, it is necessary to check whether there is electromagnetic interference generated by high-power electrical appliances near the air conditioner, and first rule out this reason.
3. Common causes of failure. Including the contactor for controlling the compressor and cooling fan, the machine will not receive the signal of normal operation, resulting in the failure of information transmission and the failure of starting the machine. Generally, a fault code will be reported, and the cause of the problem can be seen. In addition, if the cooling fan and compressor are damaged and refrigeration cannot be started, the green light will keep flashing. In addition, if the machine is used for a long time and the circuit board is overheated, the air conditioner will stop working and the green light will keep flashing.
4. Insufficient refrigerant. This situation is also more common. If the refrigerant is lacking or leaking, the machine can't start cooling, and the air conditioner may keep blowing, but there is no cool wind, and the green will keep flashing. Need to ask a professional to add fluoride to check whether the refrigerant pipeline is normal.