We have a Vokera Maxin 28E boiler. The central heating works fine and the boiler lights every time. However recently the gas burner only lights occasionally when we turn on the hot tap i.e. no hot water for large parts of the day. Any ideas please?
Many thanks for the response. I have now changed the hot water diaphragm and cleared a lot of furring up where one of the thin steel pipes enters the brass diaphragm assembly. Works perfectly with twice the hot water flow!!
Garth
June 2013
hot water diaphragm need new rubber clean pin
ltd
June 2013
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