Sabre/Vokera 24-28 HE combi. Only gets to ignition when inner case opened.

[bigads28]

To see if your fan is fast enough / producing enough pressure through the venturi, attach a gauge to the fan an see what pressure is produced.

Also don't rely on your ear for the click, but check with a multimeter to confirm power.

If the fan blades are dirty I don't like washing them, use one of the air dusters outside lol!

 

[kris]

Nice one adam , ive had that b4 thinking you coiuld here the aps making loud n clear so lookin for fault elsewhere but when i checked voltage it was no where near enough goin back to board,

 

[mfgs]

99% of the time, its the venturi that needs cleaning on these.

 

[arran197]

I had a Ferroli doing the same. I had to fit new venturis in the end, cleaning them didn't solve it. I put a new fan on too because I broke the neutral connection off, but the old one really needed cleaning, so check that too. The blades were caked in dust.