How can i fix my Vokera SP80 Excell Combi Boiler ?
Hi, i have a Vokera Sp80 Excell boiler iv`e had it a few years and its been ok, just recently when switching on the cental heating it fires up on ok then when it reaches it working temperature it carries on instead of switching off so im using a lot of gas, any ideas as to why
eddie vic
February 2013