I walk past a lot of this in my Taman, noticed some high pitch noise coming out of the TNB rooms, don't know what makes the noise but it might be annoying at late night.

Another incident happen last week in the Taman next to the one I stayed, the TNB room had a mechanical failure, smoke coming out from the roof, fire brigade was rush to the scene, it happen at 1am in the morning!

If can avoid, avoid loh.