Recent content by RoyLeslie47

Many thanks to Superdupergasman, i hoped that was what is was as I have already changed the "board" thinking it could have been electronic, its like the mother board on my computer!!! Roy.

Hi All, My boiler has a high temp primary fault in the DHW mode which drops the burner out in a regular manor ie hot water cold water etc. The high limit does not operate and the CH thermister has been changed. Could it be a clogged water to water HE as it takes some time before the DHW gets...

Tony, Yes checked the o/h circuit and it was ok, fitted a new board this afternoon and it burst in to life immediately, I thought I was right as the o/h circuit has to have a supply to it and that comes from the gas valve module which is fed from the main pc board, very efficient when it is...

Tony, I have continuity on all the wiring in the boiler, the o/h circuit does not go to the pcb, it goes to the gas valve module (on the side of the gas valve), this is the unit that is fed from the pcb. There is no supply (mains I think) to the gas valve module which comes from the pcb, that...

Agile, Gasgeezer, Tony Now, my boiler really needs some educated ideas before I commit and go and get a pc board! I have tested everything that controls the boiler but I need to understand the power distribution as the book is pretty poor on voltages at the various locations, we will be...

Tony, Thanks for that, no the high limit is not tripped, as I see it the fan and pressure switch circuits are fed from the gas valve module on the side of the valve, there is no power going to that so no power to the fan or ps. The book says the o/h stat is mains voltage this must come from the...

This is wife replying under instruction from hubby. Hope you understand! Fuses are ok. Pump is running. Book does not say that any stats are inside the chamber but are on the outside of the chamber on the pipework. There is no electric supply from the PCB to the gas control module which I...

Jaguar boiler again 28kw combi everything checks out but the fan and pressure switch have no voltage to them. There is no voltage from the pcb to the gas control module which feeds the fan ps. I can only assume that it is the pcb. Is there anything I am missing as I can not get a board sale and...