不制冷原因很多，可能的原因是压缩机保护装置跳脱的现象。压缩机过载保护会跳脱代表系统高压压力过高或过热电流过大。

There are many reasons for not cooling. The possible reason is the tripping of compressor protection device. The compressor overload protection will trip, which means that the high pressure of the system is too high or the overheat current is too large.

高压过高过热的原因和排除：制冷剂过多。适当减少制冷剂量。散热不良。检查冷凝管是否有尘垢，清洗冷凝器。

Causes and troubleshooting of high pressure overheating: too much refrigerant. Appropriately reduce the refrigeration dose. Poor heat dissipation. Check whether there is dirt on the condenser pipe and clean the condenser.

管路系统堵塞。参照压力表判断、排除，重新系统处理。

The piping system is blocked. Refer to the pressure gauge for judgment, troubleshooting and re system treatment.

蒸发器或滤网积尘结垢。气流变小，系统压力及温度失恒，清洗蒸发器或滤网。

Dust and scaling on evaporator or filter screen. When the air flow becomes smaller and the system pressure and temperature lose constant, clean the evaporator or filter screen.

缺氟也有可能。缺氟时，压缩机排气温度会过热，使过热负载保护开关跳脱。

Lack of fluorine is also possible. In case of lack of fluorine, the exhaust temperature of the compressor will overheat and trip the overheated load protection switch.

空调的功率一定要和制冷的面积相匹配哦，不然空调可能达不到制冷的效果，压缩机是空调器制冷系统的心脏，系统中制冷剂循环或流动是靠压缩机运转来实现的。

The power of the air conditioner must match the refrigeration area, otherwise the air conditioner may not achieve the refrigeration effect. The compressor is the heart of the air conditioner refrigeration system, and the refrigerant circulation or flow in the system is realized by the operation of the compressor.

一旦压缩机停止运转，制冷即告结束。压缩机对制冷剂的压缩过程为，压缩机从蒸发器吸入蒸发后的饱和气体，经压缩提高其压力和温度后，排入冷凝器进行冷凝。

Once the compressor stops running, the refrigeration ends. The compression process of the compressor to the refrigerant is that the compressor sucks the evaporated saturated gas from the evaporator, increases its pressure and temperature after compression, and then discharges it into the condenser for condensation.