is it the pump or the divertervalve(potterton suprima 30L)

[bootnecksport]

HOPE YOU CAN HELP SUPRIMA 30L, I HAVE POWER TO THE APPLIANCE BUT DOSE NOT RUNS THROUGH THE FIRING SEQUENCE. HAS ANY BODY GOT ANY IDEAS, THINK IT MAYBE DIVERTERVALVE OR THE PUMP?
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Lynda, moderator,

please read forum rule 6

 

[gas4you]

Does fan start? What do you mean exactly that it does not go through firing sequence. Could be the notorious suprims pcb

We need more accurate details

 

[gazthepottertonengineer]

and stop shouting

if anything it would be diverter stopping it firing up