Thanks for your responses. It is a Baxi Solo RS 2 boiler. Perhaps I was just ignorant to the pilot light being on.
Sorry if the second point seems contradictory but to explain - the whistling only begins after the boiler has been on for a long period of time but it ceases temporarily when the...
I own a Baxi Solo boiler and have noticed recently two problems:
1. The pilot light is constantly on even when I have turned the heating off
2. When the heating is on, the boiler makes a high pitched whilsting sound that gets louder the longer the heating is on but stops when the boiler...