I am slowly getting lost. In the evenings between 9:00 p.m. and 3:00 a.m., there is a crackling noise in our house. The noise is a single loud crackling noise. Always about every hour. Sometimes only every 2 hours.
In the beginning it was almost to the point of being accurate. Every day at 8:44 p.m. I would get up somewhere in the house to locate the noise. Unfortunately, this was not successful. We have a radiator in the converted attic. I have my suspicions about it. Could it be something like that? But it's always been off.
Meanwhile, the noise is subsiding. Today, for example, at 8:49 p.m., 10:03 p.m., and 00:07 a.m.
I also suspected roof beams, but this crackling only occurs in the evening and is always the same. Since the times were the same in the beginning, I quickly ruled them out. We have installed different actuators, all of which I have already disconnected. The problem still exists.
We still have a ventilation system. I haven't actually turned it off yet, but what's to crack? Animals are also ruled out, in my opinion. Otherwise, would you hear a rustling or something like that? I'm open to any ideas. I sit in front of the radiator again and wait for the next round ...