3. However, at mid-range RPMs, very suddenly, the sound of the fan becomes much louder. The sound is difficult to describe, but it is sort of a much higher pitched "rattling" sound, as if something might be loose, even though I doubt that there is anything loose.
I could make a video of it.... neighbor in 10+ million baht moo baan changed his compressor
since then, one bedroom on that side of the house, is unliveable
the noise is very loud and vibrations come into even a room at the opposite of the house...
off course thai people are deaf to these kind of things and say it is normal
there was no problem for years... until the change of compressor