I had some rain get into the cupboard where the boiler is and now it seems the pilot light is not coming on. It's chugging away but does not click on and make the usual sound for a bit and then shut off again like it usually does. Sorry I don't know what the model number is, our landlord is also based in South Africa so can't get a response from him. I know it's only about 4 years old if that helps? I've turned of the system because all it seems to be doing is humming away and not heating up the water. I've pressed the reset button with no luck. There are two other buttons, on the thing, but who knows what they do. Any advice or should I just call British Gas?