Hi folks, hope someone can help me out
I have a Halstead Hero75 boiler, almost out of guarantee. Since buying I had to have a new heat exchanger about 9 months ago, apparently there was a design fault in the original that was leading to loud banging noises which I was continually complaining about, and three new boards to stop the banging caused by a delay in ignition when the system was calling for more heat but there was a delay after the initial "click" as the gas started coming through. Not impressed with all this especially as the ignition bangs appear to have started again, heard a couple last week.
We had the heating system re-piped 18 months ago by another firm, as previously we had a leak underground-concrete-which gave rise to all sorts of problems, now plastic microbore. When I went to bleed the rads at the start of autumn there was not a scrap of air in the system to come out.
In the airing cupboard there is a valve that controls the flow of water, ie CH only, HW only or both together.
Current problem is that for 5/10 minutes or so at the end of the first heating run, and during the subsequent short runs until the system stops calling for heat, there is a new noise, a bit like rushing hot water or kettling (so the engineer says). This does not happen however when the boiler is supplying both the CH and the HW, or HW on its own. This seems strange to me (who knows nothing) as surely the heat must be getting up the same high temperature prior to the boiler shutting down, whatever the demand is. I had the boiler serviced a couple of weeks ago and it's my impression that the problem has started straight after this, though I could be wrong and had merely not noticed before as little use made of the heating side up to then. The problem igets worse the high the boiler tepm. is set, though I normally have the knob about halfway between - and +.
No bypass valve, I was told I didn't need this in view of the valve thingy in the airing cupboard.
I am getting very frustrated by the whole thing and have even got a quote for a new boiler, as after the engineers last visit I felt like having the dam thing ripped out and starting again!
Any ideas would be very welcome, as whilst I don't feel like spending money on what could be an ongoing basis and chucking good money after bad, now that I've calmed down I don't really want to start all over again with a new new one.
Help please, Arni
I have a Halstead Hero75 boiler, almost out of guarantee. Since buying I had to have a new heat exchanger about 9 months ago, apparently there was a design fault in the original that was leading to loud banging noises which I was continually complaining about, and three new boards to stop the banging caused by a delay in ignition when the system was calling for more heat but there was a delay after the initial "click" as the gas started coming through. Not impressed with all this especially as the ignition bangs appear to have started again, heard a couple last week.
We had the heating system re-piped 18 months ago by another firm, as previously we had a leak underground-concrete-which gave rise to all sorts of problems, now plastic microbore. When I went to bleed the rads at the start of autumn there was not a scrap of air in the system to come out.
In the airing cupboard there is a valve that controls the flow of water, ie CH only, HW only or both together.
Current problem is that for 5/10 minutes or so at the end of the first heating run, and during the subsequent short runs until the system stops calling for heat, there is a new noise, a bit like rushing hot water or kettling (so the engineer says). This does not happen however when the boiler is supplying both the CH and the HW, or HW on its own. This seems strange to me (who knows nothing) as surely the heat must be getting up the same high temperature prior to the boiler shutting down, whatever the demand is. I had the boiler serviced a couple of weeks ago and it's my impression that the problem has started straight after this, though I could be wrong and had merely not noticed before as little use made of the heating side up to then. The problem igets worse the high the boiler tepm. is set, though I normally have the knob about halfway between - and +.
No bypass valve, I was told I didn't need this in view of the valve thingy in the airing cupboard.
I am getting very frustrated by the whole thing and have even got a quote for a new boiler, as after the engineers last visit I felt like having the dam thing ripped out and starting again!
Any ideas would be very welcome, as whilst I don't feel like spending money on what could be an ongoing basis and chucking good money after bad, now that I've calmed down I don't really want to start all over again with a new new one.
Help please, Arni