Problem:
I moved in to a new house.

Plaster ceiling making weird noises such as 'krak' or 'krik', or 'krok', sound after a while after switching on the aircond.

After i switched it off, the sound goes away.

If i use a normal standing fan in the room, then of course, no sound at all.

So, it's not rat as suggested in the old thread below.

I found a similar old thread with an exact problem.
https://forum.lowyat.net/topic/2146590

so, the question is how to solve this problem of making the sound goes away. Which professional should i call?

Has anyone experienced this as well?

This post has been edited by Blofeld: Sep 19 2024, 11:59 AM