空调突然不工作了有多种原因。我会按以下步骤检查。

来源: 于 2019-07-30 13:20:57 [旧帖] [给我悄悄话] 本文已被阅读：次

AC compressor clutch whether engage. 

If it does not engage, it could be the relay, low freon or bad clutch.

If it does engage, then it is not the relay or cluth.  Then it could be low freon, bad compressor or expension valve.

No matter what, the best way to check the AC problem is to use AC manifold gauge to check the low and hi end pressures.  It will point to the problem.  It only cost $50 to get the gauge from Harbor Freight.