Vokera Flowmatic 20-80 boiler part required

[ToAoB]

I have a service agreement with a provider who looks after the boiler however they are unable to obtain one part from Vokera as its no longer in stock.

I have seen a photo of this part: a small PCB with components and a 4 pin connector. After reviewing the installers manual, the only 4-pin connector on the main PCB connects to a flow switch.

I was told the reference for this part is GC 470 9407 (is this correct?)

Does anyone know if this part is still available anywhere for purchase which I will then pass onto the installer.

Thanks

 

[Dan Robinson]

Picture of the part please.

 

[ToAoB]

Picture of the part please.

Thanks here they are:

 

[Dan Robinson]

FFS - I know what it is..... I just can't put my finger on it... @DP might be along soon.

 

[Agile]

It looks like some kind of delay timer pcb.

I dont remember it from the boiler but then its a while since I had to repair one and the problems are normally water related.

It does look totally repairable for anyone with a little electronics knowledge though.

 

[DP]

It looks like a delay timer that piggy back onto the main board
This item was an afterthought as earlier units went from high flame to, then off if temperature still rose
This mini pcb snoozed the burner

I might have this part (working or not do not know), will need to look for it though. Let me know if you need it

I would be tempted to remove the 4 pin socket, looks like there might be water related issue under the socket. No fuse so possibly 13amp fuse may gave vaporised the foil. Have boards that were later fitted with in line fuse

 

[ToAoB]

Hi DP, thanks for the reply.

If you have it, that be great, let me know if you find it as otherwise dont want to end up having to get a new boiler.

BG says they will fit the part once a replacement PCB is found. In case you dont have the right PCB, what`s ther chances of finding a replacement lying somwhere?

Thx

 

[Agile]

Hardly worth waiting for DP to find one when the 6759 is available for less than £10 !

http://www.pcbs4u.co.uk/?product=new-vokera-6759-delay-timer-pcb




NEW VOKERA 6759 DELAY

 

[Agile]

So much for the interest shown by your repair engineer in looking for a spare part for you!

 

[ToAoB]

When you say it`s been replaced by boards with fuses, will this still fit?

Do you know if the boiler will accept a updated main board and its piggy backed fused PCBs etc?

 

[DP]

Fuse I wrote about is not on the board. Forget I mentioned as you will not be effected.

Make sure the mains fuse in plug or spur is 3 amp, not 13.

 

[ToAoB]

Engineer did speak to Vokera - they the ones that dont have the part anymore.

Engineer works for BG and they only buy from manufacturers and no one else...so thanks Agile for finding this part, will go ahead and get this

 

[ToAoB]

The PCB you found, says it fit

• Vokera Flowmatic 24/96 RSE

will it also fit the boiler model I have?

 

[Agile]

This one is a bit cheaper and includes postage etc.

http://www.ebay.co.uk/itm/Vokera-Fl...193276?hash=item465552b0bc:g:wuIAAOSwNRdX379n

It looks the same as your part so I would expect it is the same.

But DP may know better!

 

[DP]

Same part.
OP, you sure your boiler is a 20/80 flowmatic?
Looked at the diagram, should work
All 20/ 80 I work on are not fitted with this part.
I would be concerned about some other components that hardly ever get looked at. Great boiler, worth keeping, but some parts now short supply or obsolete