空调制冷不好或者不制冷
The air conditioner does not cool well or does not cool
这个问题最常见，空调缺氟是关键
This problem is the most common, and the lack of fluorine in air conditioning is the key
开机先摸回气管，通过温度来判断
Touch the air return pipe before starting the machine, and judge by the temperature
如果冰凉查内机，风机转速可能低
If it is cold, the fan speed may be low
内管鳞片和防尘，清洗干净或更换
Inner tube scale and dust-proof, clean or replace
如果内管不算凉，粗管可能有压扁
If the inner tube is not cold, the thick tube may be flattened
回气温度不算凉，再摸进气来判断
The return air temperature is not cool, and then touch the intake air to judge
进气冰凉还结霜，加氟再来试试看
The intake air is cold and frosty. Try it again with fluoride
结霜如果慢慢钢纤维 驱鸟设备 保定通风管道 塑料土工格栅 检查井模具 流水槽模具 锻造厂家 华尔街铜牛散，定是缺氟好决断
If the frost spreads slowly, it must be a good decision for lack of fluorine
压机老化不难见，排气不足是重点
The aging of the press is not difficult to see, and insufficient exhaust is the key
四通串气也常见，通过收氟来判断
Cross flow is also common, which can be judged by fluorine collection
高压鳞片必须看，脏了也会制冷慢
High pressure scales must be seen. If they are dirty, they will cool slow