I have a Vokera EXCELL 80SP and when DHW is turned on the burner lights for about 30 seconds then goes off for about the same then back on again and so on. The central heating is working ok but again if DHW turned on the burner goes on and off.
Have had a CORGI engineer to it he has used a seal kit, replaced the Domestic diaphragm and diverter valve seals and checked the valve. The fulcrum arm and micro switch all seem to be operating ok. I am looking for advice as to what else should be looked at.
Just another point, when the outer cover is off the boiler I have noticed the burner front cover plate and all the metalwork in the boiler (pipes etc.) is very hot even when the boiler isn't operating and just the pilot light is on, is this normal?
Have had a CORGI engineer to it he has used a seal kit, replaced the Domestic diaphragm and diverter valve seals and checked the valve. The fulcrum arm and micro switch all seem to be operating ok. I am looking for advice as to what else should be looked at.
Just another point, when the outer cover is off the boiler I have noticed the burner front cover plate and all the metalwork in the boiler (pipes etc.) is very hot even when the boiler isn't operating and just the pilot light is on, is this normal?