Alpha CB24 Boiler is producing hissing sounds

Hi All,

From last few days, some strange hissing sounds are coming directly from my Alpha CB24 boiler, which is almost three years old. In order to get rid of, I have restarted the boiler but all in vain. What else should I do? Please guide me

Waiting for your precious suggestions


Hi Alf,

Sometimes hard salts precipitate deeply on the surface of boiler’s heat exchanger therefore, causing a thinner layer of limescale. Beside this, some other unforeseen reasons are causing deposit directly into your Alpha boiler. At times, noise-reducing chemical can help and you can add it as well. Or else buy a cleaner and remove limescale or sludge from the boiler, as it will make your boiler free from all types of debris.