Why does the air conditioner and heating not start in winter?
Analysis of the reasons why the air conditioner does not start heating:
1. Improper use
After the air conditioner is used for a period of time, the filter accumulates too much dust, and the internal and external units The vents are blocked by foreign objects. If too much dust accumulates and is not cleaned in time, it will block the air circulation, resulting in a reduction in the air output from the air outlets, causing the heating heat in the machine to not be brought out in time by the flowing air, resulting in insufficient heating. This It's not a malfunction, it's a maintenance issue with the air conditioner.
2. Insufficient refrigerant
Due to leakage in the refrigeration system, there is insufficient refrigerant participating in the heat cycle in the system, resulting in a decrease in heat exchange efficiency, resulting in insufficient heating capacity.
3. Four-way valve
The heat pump air conditioner switches between cooling and heating states through a four-way valve. If the four-way valve is part of a series of air and refrigerant, it should participate in heat exchange and return directly from the compressor outlet pipe to the return pipe of the four-way valve, resulting in a reduction in the heat exchange of the refrigerant and a reduction in heat exchange efficiency, resulting in Lack of calories.
4. Defrost controller failure
The heating status of the evaporator of the heat pump air conditioner is located in the outdoor unit. If the frost heat pump air conditioner uses a hot gas defrosting device, if the frost controller fails, the The operating status of the air conditioner can collect frost, and frost will appear on the heat pump heating evaporator. The heat exchange efficiency of the air conditioner heating will cause insufficient heat or even stop.
5． Auxiliary electric heating function fails
If the electric auxiliary heating control circuit or electric auxiliary heating equipment fails and cannot work normally, when the ambient temperature is relatively low, it will cause insufficient air conditioning and heating, even in harsh environments. There is no heating at all.