Gas heater is beeping - should I call the heating technician?

hello does anyone know what this could be something is beeping on the gas heating when you flush the toilet? unfortunately i have no idea about it

Is air coming out somewhere? Sounds like overpressure and that this overpressure is being released somewhere intentionally or unintentionally. The whistling must therefore be caused by air being blown out.

Have you called the heating engineer yet? What does he say?

Is air coming out somewhere?
Sounds like overpressure and that this overpressure is being released somewhere intentionally or unintentionally.
The whistling should therefore be caused by air being blown out.

Have you ever called the heating engineer? What does he say?

No, I don’t see air coming out anywhere, how can you find that out?

I haven’t called anyone.

Feel with your hand, hold up lightweight paper (printer paper is way too heavy, like a plastic wrapping or something), tap water everywhere with your finger. Like with a hole in a bike tire, the water will form small bubbles and hiss where air is escaping.

If the heating system was installed recently, I would talk to the heating engineer, you still have a warranty.
If the heating system is already a few years old, you won't get around calling an installer if you can't find the source yourself.

Unpleasant noise. Air is leaking [da pfeift Luft ab]. Pressure cooker noise.

Hi

that sounds like a hissing noise. Possibly a valve not fully open or the fill valve in the cistern.

Olli