Afternoon all,
I've read plenty on here bout Intergas boilers, but nothing i'm afraid that has helped me, so i'm reaching out!
In summary: I have a new HRE 18 OV boiler fitted on a Y plan system.
Boiler ground floor.
Cylinder and (new) pump directly above on 1st floor.
Feed/expansion tank directly above that in loft.
Wall stat; cylinder stat; pump and timer are all wired via a wiring centre.
TRVs on all but two rads (bathroom and hall)
3 bed Semi detached house with Lounge and dining room.
Issue is that when the boiler is set to heating, it lights and stays lit as normal, but the output appears to be very low and it takes an age for any heat to develop, particularly downstairs.
where they remain mostly lukewarm.
The sytem has been flushed and dessludged and flushed clean twice over and inhibitor added.
we have bled it to death and there are no cold rads or cold spots, just uniform insufficient heat.
The link between 9 and 10 on the low voltage side remains and the link between 6 and 7 has been removed (as per the tech support at Intergas).
When you add extra demand to the boiler for Hot Water everything warms up much quicker.
Also, out of pure interest, I put the link back in between 6 and 7 and the thing heated up in quick time, all the rads nice and toasty. I thought I had nailed it, but when I knocked the wall stat down to 12c when going to bed (I don't normally do this, I rely on the time clock, but it's for convenience at the moment) the boiler ran on for about 20 seconds, seemed to overheat a bit and shut down.
I was tired so I went to bed and thought nothing of it until I got up this morning at 6 am to have a waz and the rad was warm in the bathroom. I checked the airing cupboard and everything was red hot.
So I went down stairs to discover the boiler was on. I watched it for 5 mins and it shut down again, after what appeared to be a similar overheating thing to the night before.
My guess was that with the addition of the link on 6 and 7, whilst the wall stat had shut the pump down, it hadn't shut the boiler down. As such I removed the link and i'm back to square 1.
Any suggestions on this would be greatly appreciated as my fitter (who's a family friend) and I have gone through pretty much everything we can think of.
I saw in another post, someone had added a link between 4 and 5 and that did something. Wondering whether to try that next!?
Thanks in advance.
G
I've read plenty on here bout Intergas boilers, but nothing i'm afraid that has helped me, so i'm reaching out!
In summary: I have a new HRE 18 OV boiler fitted on a Y plan system.
Boiler ground floor.
Cylinder and (new) pump directly above on 1st floor.
Feed/expansion tank directly above that in loft.
Wall stat; cylinder stat; pump and timer are all wired via a wiring centre.
TRVs on all but two rads (bathroom and hall)
3 bed Semi detached house with Lounge and dining room.
Issue is that when the boiler is set to heating, it lights and stays lit as normal, but the output appears to be very low and it takes an age for any heat to develop, particularly downstairs.
where they remain mostly lukewarm.
The sytem has been flushed and dessludged and flushed clean twice over and inhibitor added.
we have bled it to death and there are no cold rads or cold spots, just uniform insufficient heat.
The link between 9 and 10 on the low voltage side remains and the link between 6 and 7 has been removed (as per the tech support at Intergas).
When you add extra demand to the boiler for Hot Water everything warms up much quicker.
Also, out of pure interest, I put the link back in between 6 and 7 and the thing heated up in quick time, all the rads nice and toasty. I thought I had nailed it, but when I knocked the wall stat down to 12c when going to bed (I don't normally do this, I rely on the time clock, but it's for convenience at the moment) the boiler ran on for about 20 seconds, seemed to overheat a bit and shut down.
I was tired so I went to bed and thought nothing of it until I got up this morning at 6 am to have a waz and the rad was warm in the bathroom. I checked the airing cupboard and everything was red hot.
So I went down stairs to discover the boiler was on. I watched it for 5 mins and it shut down again, after what appeared to be a similar overheating thing to the night before.
My guess was that with the addition of the link on 6 and 7, whilst the wall stat had shut the pump down, it hadn't shut the boiler down. As such I removed the link and i'm back to square 1.
Any suggestions on this would be greatly appreciated as my fitter (who's a family friend) and I have gone through pretty much everything we can think of.
I saw in another post, someone had added a link between 4 and 5 and that did something. Wondering whether to try that next!?
Thanks in advance.
G