What is a "nub"?
It's this:
No idea what it is. Not in the manual, as far as I can see.
What is a "nub"?
It is a test point.

many an unnecessary death sentence being given to these built like tank boilers. They are not crap if you know what you are doing


I agree icos/isar, bolts sheer off main hex, small leaks from oring under same render hex kaput and pcb dies on a regular basis plus more horrible stuff going on. Now if I said that this was a good boiler then I think I would be paraletic. Ideal should be ashamed of themselves.
Halstead on the other hand can be fixed easily everything accessible most parts on van (generic) Pcb is i must admit pricy but have lasted ages, well built these are golden oldies and only get the heavho when mr fix couldn't be assed and condemns it. Even when neglected by owner they still chuntle on.
Of course it's demise will eventually be spares As even dimplex have ditched it. Shame.
I agree icos/isar, bolts sheer off main hex, small leaks from oring under same render hex kaput and pcb dies on a regular basis plus more horrible stuff going on. Now if I said that this was a good boiler then I think I would be paraletic. Ideal should be ashamed of themselves.
Halstead on the other hand can be fixed easily everything accessible most parts on van (generic) Pcb is i must admit pricy but have lasted ages, well built these are golden oldies and only get the heavho when mr fix couldn't be assed and condemns it. Even when neglected by owner they still chuntle on.
Of course it's demise will eventually be spares As even dimplex have ditched it. Shame.
Hi spareshunter,
I wonder whether I could pick your brains, in this case. My landlord's Halstead Ace High has failed again today -- as described in the first post: open up a tap, hot water light comes on, burner does not ignite.
It's been three weeks since it last failed; last time I left the DHW demand running for 10 mins and it fired up. This time that hasn't helped. The expansion vessel has been replaced, and the plumber the landlord supplies seems unable to provide a permanent fix for the problem. Do you know what it could be?
I know the best answer is "get a proper boiler engineer" but this is currently not within our grasp. We are meek and feeble tenants and we are basically stuck with who we're given, so if there's anything I can suggest to help the plumber on his way then I'd be grateful for it.
Do tell us exactly what the problem is.
We like to know the details!
Tony
I see turning up on time as either good luck or he has little else to do.
Its very difficult for an engineer to arrive at any exact time. When we go to do a repair we have no idea if its going to take 10 min or two hours. Then there are the traffic issues and London here is one of the worst places for traffic delays. That's why I like to go by tube when possible as they are rarely delayed compared with road journies.
I give a range of times and call 30 min beforehand.
Tony
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