I have a vokera compact 24 central heating boiler which is knocking off wh?
The hot water on this boiler is working fine but the heating is only working for a couple of minute and then knocking off. I have cleaned the system and the boiler parts but the heat exchanger when blown through with either air or water appears to be restricted. It is heating the first radiator on the system which is hot but the boiler just will not stay on long enough to maintain this. Can anyone help
linda the best advice i would give you is have the boiler serviced by a qualified engineer.
has this boiler ever worked? how old is the boiler? are there any valves been fitted past the first rad? is it a sealed system?
you can get a service manual from the vokera site, http://www.vokera.co.uk/trade-professionals/manuals-literature/
stewart mclean
April 2010
may be a blockage like you suggest, may also be a faulty pump
Ian
April 2010
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