In message om,
MARTINHOG writes
Hi,Discovered that capacitors C12 and C13 (100uF) had failed and that
C20 was about to die. Changed all 3 and now it works a treat !.

Ah, but you have one of six versions of this pcb


Only do this job if you are experienced in PCB component replacement,
the PCB is at mains potential.

How else is it going to run pump, fan and gas valves ?

What a strange thing to say

--
geoff