Halstead Boiler - No hot water

[ianwey]

Hi There, I have a Halstead Ace and Ace High boiler.
It runs the central heating fine but will not give any hot water whatsoever.
Noticed over recent months the hot water was getting cooler and cooler until it eventually stopped giving hot water all together.

Thanks for any help and advice....

 

[robertsamual]

I think you must go for a professional because usually its not easy to repair a boiler( which is I think is a complicated system) by a home owner or a normal person. Please visit this thread for more views- //www.diynot.com/forums/viewtopic.php?t=38743

 

[MANDATE]

Most likely the diaphragm is perished. (or the diverter is sticking)
When hot tap is opened it releases pressure on one side of diaphragm leaving pressure on the other side. This moves the diverter valve and at the end of the stroke it triggers a micro switch which ignites boiler. With a faulty diaphragm the diverter valve either does not move or does not move far enough.

 

[ianwey]

Thanks for that info - really appreciate it.

 

[MANDATE]

You might find this helpful
//www.diynot.com/forums/viewtopic.php?p=1132272#1132272

 

[HERTS P&D]

I think you must go for a professional because usually its not easy to repair a boiler( which is I think is a complicated system) by a home owner or a normal person. Please visit this thread for more views- //www.diynot.com/forums/viewtopic.php?t=38743[/QUOTE]

Hey Robert, how come all of your posts recommend to get someone in? People are asking advice, i'm sure they know to get someone in.

Andy