Keston Boilers Guide

Hello Everyone,

I have a Keston Combi C40 boiler, which is about four years old. From last three or four hours, I am noticing some strange whistling sounds coming from the boiler. These sounds last only for few seconds. What is the matter?

Thanks

Tina

Hi Tina,

Usually, the air trapped in the boiler is a major reason behind the whistling sounds. Even though, kittling and low pressure can also cause it. A faulty pump will produce various strange and weird sounds as well. You can fix it easily by bleeding the radiators or power flushing the pipes. This process will remove the excess air from the boiler. However, if whistling sounds are still there, you need to call a qualified engineer to check the pump & boiler as well.