Ian, why not get the multimeter out and check what is happening.
Ian what pin are you refereing to in above? Is it the big manifold at the front with 6 screws in it or one at the back with four screws. Are you serious when you say you used WD40?
Looks like you have been on round the earth in a rowboat (and no computer or internet linkup) by the look of posts you have written since 2005
I was at a Baxi 105 e on friday no heating but hot water...found out it was diaphram waher pin not comming out siezed soild bit of wd40 but still suspect mirco swich as cause 2
Ian what pin are you refereing to in above? Is it the big manifold at the front with 6 screws in it or one at the back with four screws. Are you serious when you say you used WD40?
Looks like you have been on round the earth in a rowboat (and no computer or internet linkup) by the look of posts you have written since 2005