l have a problem with my boiler it is a Baxi solo 3 pfl 40 and it will not fire up. The baxi has 5 lights displayed they are overheat, boiler on , fan on , fan on , pilot on , and burner on , but when l switch the boiler on all that comes on is the boiler light and the fan light flickers on and off with a clicking sound. It's been like this for a few days now so l have no heating or hot water. l hope someone can point out what may be the problem and what the cost may be to repair it. Thanks