my vokera compact is losing pressure,it is dripping slightly from the overflow and trickles when the heating is on.i have checked all the connections on the flow and return and they are fine so it must b a problem in the boiler
vokera excell 80sp combi banging sometimes both on central heating and on water.water cools down then boiler starts up again.temp gauge not reading temp .any ideas
martin, November 2011
Change pressure relief valve,follow the dripping pipe which is connected PRV drain down boiler from drain out point,when new one fit take air from radiators and pump from big nut front of pump make sure auto air open