Pilot light on my boiler stays on when heating is off

[norfolkhouse]

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 ignites.

Any ideas as to what is causing these problems and how to rectify would be appreciated

 

[muggles]

You don't say which version of the Solo you have but I strongly suspect your first problem isn't a problem, it's always done this, you just haven't noticed it before.

The second problem needs a more detailed description I think. When exactly does it occur, does it happen after the boiler first lights in a morning and heats up, or does it do it when the boiler is cold as well?

 

[45yearsagasman]

Baxi Solo's with the large square flue terminal have permanent pilots.
Your point 2 is contradicting itself.

 

[norfolkhouse]

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 boiler is actively burning gas, i.e. it only whistles when the hot water is pumping through the boiler system. Hope that makes more sense!

 

[45yearsagasman]

Normally, boilers of this type only make noises when the main burner is on. If I follow you correctly, the noise happens after the main burner has shut down upon reaching temp, and returns when the burner relights. The only way to diagnose your problem is to be in front of the boiler when this occurs.
Burner on = no noise
Burner off= noise