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dave35
Please can anyone help me I have a 10 year old Worcester 28si11 boiler that until the last 3 weeks has worked well! Boiler will not fire up on either water or central heating. I have both a slow or fast flashing light depending on how it feels, will reset but light just comes back on. I have had 2 boiler engineers look at it and both are stumped. Parts they have changed are the PCB, primary sensor, pressure switch, flow switch and the transformer. over heat stat has continuity so he thinks that should be OK. The pump seems to run contiguously all the time the power is on. The fan does not have time to cut in. If anyone can please help because this is proving costly and I am being moaned at by my wife every day!!!!
