Keston boiler help needed

[Si23r]

Hi, i have a keston boiler
I have an issue where it gets far too hot, when i put heating on the radiators are scolding... i have a 1 year old so its no good, i have to turn boiler on and off at main switch as it is just too much.

Is there anything i can do to stop it getting too hot?

Tia

 

[ianmcd]

I am afraid you will have to give a lot more information than that, keston actually make more than one boiler surprisingly