Sime Super 90 not firing heating/hot-water

[GrahamM]

At this today.
MI's were a little vague for any real help.
On demand pump is running, fan running, pilot lights and keeps sparking. That's it.
Came to conclusion not rectifying so going back with ignition lead and board.
Just looking for some confirmation I on right track.

 

[IDCHAPPY]

Pressure ok? I know it's odd but ever since I had a similar issue on a WB junior I've always double checked the water pressure switch.

 

[GrahamM]

Would sequence get as far as sparking if water pressure switch was problematic?
Most of other boilers I have had dealings with the water pressure switch is proven at beginning of sequence.

 

[IDCHAPPY]

What you are saying is correct, just as a side note since my WB junior experience if there is ignition issues I try and bypass the WPS to check.
You are probably correct though with it being flame rectumfication.

 

[kris]

off to bed ian

 

[kris]

rectumfication lol

 

[IDCHAPPY]

I was in bed, it was a middle of the night web cruise 😉

 

[kris]

You need them now n then bud,