Central Heating

Noist boiler first thing in the morning?

Anonymous user 23/02/2024 - 2.38 PM

We have a rented house which has an Ideal Icos boiler, the tenants have said that first thing in the morning when the boiler comes on it wakes them up with a high pitched howling noise. The boiler has had its annual check and the house has had its gas safety cert, which included a look at the boiler. Neither of these checks raised any concerns regarding the boiler. Should we get it checked out again? Is this to do with a blocked pipe/limescale build up or something else? Thanks.