any ideas for central heating prob

Hi can ayone help.
I have an Ariston Eurocombi boiler.
During the summer while radiators were off everything was fine with the hot water.
Switched heating on at weekend and that was ok . However, when i turn taps on now (heating off but rad valves open) the rads are warming up and tap water temp is fluctuating.
Cheers.
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hot
Sounds like the 3-way valve is not opening or seated properly.
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Freddo Lasagne wrote:

Not sure, but would a primary coil to hot water tank leak cause that?

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hot
taps
All that snotty education and you can't see he has a combi.
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Diverter valve, probably. As it wasn't operated over the summer, it's probably got covered in crud, which has stopped it moving properly. Try exercising it a bit by turning the hot tap and heating on and off a few times. If this doesn't work, a replacement might be needed.
Also, check your inhibitor levels. These problems are more likely to occur after a period of corrosion, which shouldn't happen with the right concentration of inhibitor.
Christian.
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I have this boiler too. great when it works. Sounds link your 3 way valve has stuck. you can wiggle it with your fingers on the lever.
Freddo Lasagne wrote:

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