Combi - Heating Comes on When Tap is run?


Postby SteveK » Sun Jun 03, 2007 9:14 am

[b]Boiler:[/b] Alpha Ocean eco240

[b]Problem:[/b]

When a tap/shower is turned on the Central Heating comes on [b][color=red]RED HOT[/color][/b]. Even though all the central heating controls indicate that the CH is not on. When the tap/shower is off the CH goes off.

ie. No light is on (only water), manual switch (inside timer) is set to '0' or 'auto'.

The CH is supposed to turn [b]off[/b] when the any water is run, but i get normal temperature water and red hot heating

Any ideas anyone, i have never had a problem with this boiler since installation in 1996. Please do not diss this boiler as many engineers do not like them.
SteveK
Posts: 2
Joined: Sun Jun 03, 2007 9:03 am

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Postby htg engineer » Tue Jun 05, 2007 11:16 am

heating comes on when hot water tap on ? if so there's a problem with the diverter valve, may be the diaphragm or dirt on the valve seating. Heating flow will heat up a little bit when hot water tap turned off, this is just getting rid of the excess heat left in the boiler.
htg engineer
Posts: 3202
Joined: Tue May 22, 2007 5:22 pm


Postby SteveK » Tue Jun 05, 2007 7:31 pm

Thanks, Managed to get a heating Engineer (specialist in Alpha). He 'Re-sealed' the valve and everything is back to normal.

[b]Cheers[/b]
:P
SteveK
Posts: 2
Joined: Sun Jun 03, 2007 9:03 am


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