My boiler pilot light is not lighting straight away and sounds as though it is misfiring it does light eventually. I also have a lot of air getting into my central heating system any idea what may be causing this?
Sounds like a venting problem. Check the chimney for blockage. If thats not the problem you will have to call a professional or someone very knowledgeable in HVAC. Even if its not the chimney,thats the cheapest,easiest check that you can do yourself. Also check the vent pipe from the boiler/furnace to the chimney for any leaks,damage,etc. You say boiler then you say central heating. Central heating usually refers to a warm air furnace. Either way both vent to a chimney of some type.
