Vokera boiler heating OK but hot water not firing up

carrievictors · 3 Aug 2006

I have a Vokera boiler that is 12 years old and British Gas came to fix it because the hot water would not fire up unless the heating was switched on first, which made the flat very hot in the heatwave last week. They changed the firing switch and the diaphragm but now it is even worse! Now I have to switch the heating on about 3 times before it will fire up, and only then will the hot water fire up. Are there any suggestions as to what else could be wrong with it, or should I just get a new boiler as it is old for combi?

kevplumb · 3 Aug 2006

model might be a help

and don't let DP hear you say it's past it

carrievictors · 3 Aug 2006

I don't know the model, I am at work, but I will look when I get home

scatmanjohn · 3 Aug 2006

Tell BG to come back and repair it properly.

carrievictors · 3 Aug 2006

I will, I am just building up to taking another half day off to sit in and wait for them - whenever anything goes wrong with the boiler it always seems to take about 3 visits to sort it out

kevplumb · 3 Aug 2006

scatmanjohn said:
Tell BG to come back and repair it properly.

yo to that fella (thought the collective brain on here) might be more use

carrievictors · 3 Aug 2006

It is a Vokera 20-80 RS flowmatic.

DP · 3 Aug 2006

What more can I add to what Kev has already said.

The person who comes to repair the boiler MUST know how the boiler works. The fact that it is not working, along with knowledge of operate sequence, repair should be a doddle. Part changing will be a long and tedious approach.

What is your location?

carrievictors · 4 Aug 2006

I am in Wimbledon. I have called British Gas to come back this afternoon. I just thought someone on this site might have a few ideas that I could put to the British Gas Engineer in case they just say it is old and there is nothing more they can do.

ChrisR · 4 Aug 2006

I've never clapped eyes on a Flowmatic but know it's fairly standard, with a difference or two BG will know about.
Older combis often have 3 or 4 things not right, and fixing the apparent one or two seems to make them work. 3 and 4 hide until you 've left...
The non-lighting on CH could be by design - "anti short-cycling", or it could be number 5.
DP would have the whole thing stripped down and back working like new in the time it would take someone else

to change the diaphragm!

carrievictors · 4 Aug 2006

Who is this wonderful DP?

ChrisR · 4 Aug 2006

Wonderful DP is an engineer in Glasgow, where it seems 3 out of 4 boilers are Vokeras.

Trance Nation · 5 Aug 2006

ChrisR said:
Wonderful DP is an engineer in Glasgow, where it seems 3 out of 4 boilers are Vokeras.

This is actually very true. Must be because of the Scottish branch being there r summit. Suits me as Vokera's are a joy to work on.

Have they bled the white hw heat exchanger btw?

Paul Barker · 5 Aug 2006

How true Chris, except the boilers tony and DP go to.

DP · 5 Aug 2006

Paul, based on what the poster has said, what action would you take to rectify the fault.

Your post has knocked me off my perch. I have always read your posts with interest and admiration and did not for one minute think you would look down your nose at another RGIs efforts.

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Vokera boiler heating OK but hot water not firing up

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