Worcester 28i junior, non condensing - is it the pcb?

[beesley121]

Hi guys,

went to one of these boilers today. Everything working as normal but no gas coming through gas valve. Tested the voltage on the power leads to it and was getting 47v. Sure I should be getting 230v. Checked the resistance on the valve too, anyone know what the resistance should be?

if it is pointing to the pcb, could it be the blue transformer thingy at the back of the pcb rather than the pcb causing the voltage to be only 47v?

asvice appreciated

 

[ne1ls0n]

had one of these today acting up, explosive ignition and locking out, sticking gas valve, there starting to become troublesome

 

[IDCHAPPY]

I remember when I had the case off on one of these and the flames were locking round the heat exchanger after it had turned off.... dam near shat myself.
Anyhoo, pubs are pretty twitchy, especially in the early release models.