Vokera 20-70 se

[alexwight]

Failing to fire up. Pump runs. I manually activated the air pressure switch and it fired up. I checked for power getting to the fan, no power. Will it be the fan or the pcb?

 

[g20]

if there is no power to the fan, how can it work, even if its brand new?

PCB

 

[gaspro1981]

just a stab in the dark i think that there is a resistor mounted to the underside of the combustion chamber make sure this hasnt failed as this will stop the fan from running