空调常用的制冷剂有哪些?

最常用是R22, 还有a，c， R22目前跟风国外用环保冷剂RA——主要用在高端机上环保冷剂RA

家里的空调坏了,需要打电话给海尔维修人员维修写一段话？

你好，你说家里的空调坏了，需要打电话预约海尔维修人员维修。
通话时可以这样说：“你好！我于~年~月购买了海尔的***型号的家用空调，前天在使用中发现空调出现~~~的故障。
我家住在本市**区**街**号楼*单元*号，周末九至12点家中有人，恳请上门维修。
备用联系电话：~~~~~~。
谢谢！”希望我的回答能对你有所帮助。
如果对我的答案满意，请采纳。
谢谢！

你写上怎么坏了？还是写上坏到哪儿原因？然后直接给售后预约就可以？

这个你可以直接打海尔总部客服，有什么问题基本是可以帮你解决的，要是需要维修的话，也是可以帮你转到当地售后去的，或者安排人和你联系，服务还是很不错。
。

哪里坏了，说明情况。

急求一篇关于空调维修的英语作文，字左右？

就是投诉信嘛~请问後面要写上要求吗？就是要求他退款还是什麽的？Dear Sir/Madam, I am wirting to complain about the air conditioner. Yesterday, I went to your shop to bought an air conditioners and your staff installed that. However, when I using I found that the air conditioner was very nosie. I dont accept about this. I hope you can fix the air conditioner quickly.Your faithfully,sign(签名）还要再加字数吗？我可以再加哦

dear sir/madam,i am wirting to complain about the air conditioner.yesterday,i went to your shop to bought an air conditioners and your staff installed that.however,when i using i found that the air conditioner was very nosie.i dont accept about this.i hope you can fix the air conditioner quickly.your faithfully,