halstead ace high

[kennedy1978mark]

hi lads , anybody clued up on the halstead ace high boiler and wants to share there knowledge ? been called out tonight to one of these and it
done my head in a bit as i had no diagrams ,but even after looking on line i still cant figure it out..
boiler fires up on c/h or h/w demand runs for a few minutes then cuts out will continously do this , checked thermistors ,aps ,flow switch, pump seems to be running ok but a bit noisy.. I put a demand for h/w and noticed that it was heating the return on c/h ?? .. changed diverter diaphragm still no joy ..
any ideas ....

cheers lads

mark

 

[diamondgas]

Flippin heck!"!!

First of all pants boiler has to be said usually installed for landlords or the ill advised ........ however that in mind .. :lol:

Got to check reasons why it's cutting out, is it heat related or flame recognition? Thay determine your next port of call IMO

 

[kennedy1978mark]

heat related , when i plug c/h thermistor connection in to a spare it will run but pressure rises quite quickly , im thinking pump but its the h/w
heating return?? also c/h demand will heat h/w was looking at diagrams of hydrulic system but cant figure it out , i know there garbage but
its stumped me !!

 

[Mbear]

Did u try running the hw+ch with the combustion cover off?

I try this sometimes if I suspect a choked fan venturi. obviously it goes back at cease work

 

[kennedy1978mark]

yeah still the same ??.

 

[Mbear]

That sounds like a blockage. Are the flow/return pipes flexi or solid copper?

 

[Mbear]

Iso valves fully opened I take it?

 

[dancinplumba]

sounds like pump and or diverter jammed ?? overheating going to lock out and heat travelling down return ??

 

[kennedy1978mark]

valves open , copper pipe work

 

[kennedy1978mark]

diverter pin activates on hot water demand and also pin on flow switch activates when pump runs , will run to 3 bar blow off and lock out when run on spare thermistor

 

[kennedy1978mark]

pumps spining but sounds a bit poor ,

 

[diamondgas]

If heat related then its down to circulation , hot water and heating related keeps the issue boiler related IMO ... If it were outside then you'd have plenty hot water yeh?

So you're left with a restricted flow within the main hex, pump related or main flow sensor temp which I think you've eliminated ... How old is the system? Hard water area? or cheap installation? Guaranteed fix isn't an easy one my friend IMO

 

[Mbear]

I thinking pump. u could try service it to see if it makes a slight difference. Take of the head, clean and oil bearings, refit and try again, if it improves then replace pump

 

[kennedy1978mark]

7 years old , not a hardwater area and the poor girl got ripped off on the install off someone she KNEW , told her it was second best boiler she could get and charged her £2800 for boiler and 5 rads .. its a friend of my mrs as well!!!!! great haha

 

[kennedy1978mark]

i was going to change the head tomorrow mbear thought i had one in the van !!!!

 

[Mbear]

If money's an issue for a friend then servicing it might a decent option Matey

 

[kennedy1978mark]

we keep everthing we take out and strip down mate so have got some at the unit , normally have a few in the van but not there now ??

 

[diamondgas]

Do these boilrs have a return filter mark? Without checking out the mi's I woldn't know .. A good proffesional cleanse may well give this young addict a cleaner life stile, by the way....

 

[kennedy1978mark]

not sure diamond but im gonna take the wise old man with me tomorrow i think ,... any ideas keep me posted pls .. thanks again