Hi! Hoping someone can help because we are cold!! We have a cold water tank in the loft, a hot water tank and a thorn Apollo boliler. The pilot light will not light, even manually. We have lots of hot water but no heating. There was a lot of banging noises coming from the loft then everything stopped! We also have a constant drip from the outside overflow pipe. Any ideas?? We have called a man but he can't get here for a week!! Thanks J&R x