I think I have a gas flow problem. At first i thought my boiler was packing up as we were having trouble getting any hot water. Then I noticed our gas fire didn't seem to be burning as it should be and kept cutting out. So I put the gas fire on high and turned on the hot water. The fire flame went right down and eventually the fire went out. We are on a worcester combi boiler and I was hoping for some advice on who to call out and are there any checks I could do before i decide to call transco or a gas engineer out.