D
DW29
Hello all, I hope you can give me some advice.
We moved a short while ago into a house with a Potteron Promax 15HE system boiler. Before we could get it serviced it stopped lighting so we called in a heating engineer to do a service and fix. To make a long story short three visits later we still have no reliable heat or hot water, having replaced the spark electrodes and having done what could only be described as a safety check not a service.
He spoke to Baxi\Potterton whilst here the second time and they advised a couple of tests to see if the gas valve was faulty, one was to partially block the fan air intake by sliding paper or card over it to see if that would light the boiler, the other involved removing a copper tube that goes from the top of the gas valve into the combustion chamber (some sort of air regulator he said) and block it at the top of the gas valve. This did cause the boiler to light so he is saying that the gas valve is faulty.
The thing is it did keep relighting after he did that so he left saying if it stops lighting the gas valve needs replacing. Two hours after he left the boiler went out and wouldn't relight.
Since then if does light (rarely) it goes out after 1.5 to 2 hours.
The flame when viewed though the inspection seemed to me to burn a bit on the orange side, he said it was OK, but it burnt bluer when he had the air box panel off. He also flushed water down through the inspection hole in the flue to clear debris into the condensate trap.
Do you think these are symptoms of a faulty gas valve (would a faulty valve also cause the boiler to go out as well as not light), is it worth starting down a route of replacing expensive parts as we now have no faith in him or the firm he works for.
Or would we be better getting a new boiler as it is 11 years old and does not appear to have the best reputation.
Sorry for the long post, but we are tearing our hair out.
Many thanks
We moved a short while ago into a house with a Potteron Promax 15HE system boiler. Before we could get it serviced it stopped lighting so we called in a heating engineer to do a service and fix. To make a long story short three visits later we still have no reliable heat or hot water, having replaced the spark electrodes and having done what could only be described as a safety check not a service.
He spoke to Baxi\Potterton whilst here the second time and they advised a couple of tests to see if the gas valve was faulty, one was to partially block the fan air intake by sliding paper or card over it to see if that would light the boiler, the other involved removing a copper tube that goes from the top of the gas valve into the combustion chamber (some sort of air regulator he said) and block it at the top of the gas valve. This did cause the boiler to light so he is saying that the gas valve is faulty.
The thing is it did keep relighting after he did that so he left saying if it stops lighting the gas valve needs replacing. Two hours after he left the boiler went out and wouldn't relight.
Since then if does light (rarely) it goes out after 1.5 to 2 hours.
The flame when viewed though the inspection seemed to me to burn a bit on the orange side, he said it was OK, but it burnt bluer when he had the air box panel off. He also flushed water down through the inspection hole in the flue to clear debris into the condensate trap.
Do you think these are symptoms of a faulty gas valve (would a faulty valve also cause the boiler to go out as well as not light), is it worth starting down a route of replacing expensive parts as we now have no faith in him or the firm he works for.
Or would we be better getting a new boiler as it is 11 years old and does not appear to have the best reputation.
Sorry for the long post, but we are tearing our hair out.
Many thanks