DIY Doctor

Main navigation

Baxi Duotec Combi 24HE Boiler Loud High Pitched Humming and Whining Noise

Postby jonbbb » Mon Nov 30, 2015 9:37 am

I have an 8yo old baxi duotec combi 24he boiler.
When the gas central heating is running, it makes a constant loud high pitched humming/whinning noise.
The noise only quietens for about 5 seconds, each time the boiler reignites to heat the radiator water. Before then returning to the same level.

I am in the room above the boiler, the noise is quite loud and its persistence gives me ringing ears.
[see the link to hear the noise, recorded upstairs. the recording does not capture how loud the note is, only its tone ]. ... sp=sharing

Further info,
If the central heating is off, but the hot water tap is turned on. The boiler makes the same sound but at a much quieter level.

My questions:
1. What is the noise likely to be coming from in the boiler? [or where has similar noise come from in other related boilers]
2. And when I call out the baxi engineer again, to attempt to identify the noise source. What are the likely parts, where they should first start their fault finding?

Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Mon Nov 30, 2015 8:41 am


Simply Build It

Postby Johnny77 » Wed Oct 14, 2020 3:38 pm

Hi i have seen your post on the noisy baxi boiler.
I have exactly the same issue the boiler is a baxi plantinum and was fine up until recently a high pitched humming droning noise started and wont stop ..Could you please tell me how you resolved the issue what was the fault and what price roughly .
Thanks in advance
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Wed Oct 14, 2020 3:29 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics