Vokera Compact 29 HE won't ignite without the case cover seal removed....? | Plumbing Jobs | The Job-board | Page 2 | Plumbers Forums

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Vokera Compact 29 HE won't ignite without the case cover seal removed....?

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Discuss Vokera Compact 29 HE won't ignite without the case cover seal removed....? in the Plumbing Jobs | The Job-board area at Plumbers Forums

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I've had this on a vokera and it was the fan, removed it, cleaned all the vanes which had gummed up and become heavy therefore not turning at full speed. Refit and it fired instantly.
 
Just to be clear, you cannot clean these from the front as ther are a t shape
 
Not an He but on the SE vokera compacts you can't buy the venturi separate,it comes with the fan...so vokera said.
 
Thanks guys. Well, it was the venturi!!
We were going to remove the fan to clean it, and it seemed a right ballache with the condensing assembly needing disconnecting to remove the whole top half of the assembly. (and then the boiler needing isolating and draining down ... leading to possibly leaky isos etc) .

Next on the list we tried to undo the 4 screws underneath the fan (tight in above the heat exchanger). Try as we might there was no way the back two were coming out even with a small ratchet driver.

So I ended up blowing through the venturis using some ugauge tube, and then I got a small tie wrap (actually I sliced a big on in half, lengthways) and used this to clean the L shaped venturi.

it worked a treat and went right around the corner and after that I blasted them through with a bit of air again to be sure.

Bolted it back up and she fired up a treat, and ran pefectly!!! RESULT.

Not heard anything back from the custard so it's still working perfectly (they WOULD have rung back..!)

So big thanks to all those who helped out with this bugger, and hopefully this thread will help someone out in the some boat at some point :)
cheers
 
To get the fan out to clean the venturi, you just need to unscrew the flue hood on top of the burner and slide that out with the fan attached to it. Only need to slide it out about 3-4 inches to be able to get at the venturi. No need for a drain down and no way were you ever going to get at those screws under the fan in the flue hood with it still in place.
 
mfgs said:
To get the fan out to clean the venturi, you just need to unscrew the flue hood on top of the burner and slide that out with the fan attached to it. Only need to slide it out about 3-4 inches to be able to get at the venturi. No need for a drain down and no way were you ever going to get at those screws under the fan in the flue hood with it still in place.
Click to expand...

Im pretty sure we tried every possible combination, probably except this lol
Vokeras instructions about fan removal were very poorly written so cheers for the heads up
 
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