In article ,
John Andrews wrote:
I have a conventional heating system, comprising an Ideal gas boiler,
with gravity flow and return (hot water circuit) and pumped flow and
return (central heating circuit).

I'm getting no hot water out of the taps at present, central heating
is ok.
Can anyone advise me on how to fix this please?

Thermostat on boiler is ok, and the control panel is asking for hot
water as it should. The gravity flow pipe from the boiler is not
heating up. So I guess it might be the heat exhanger that's the
problem?

No - the heat exchanger is the same one as for the heating. Only different
feeds off it.

Has it got provision for bleeding? Any air in there? Has the system been
worked on recently necessitating draining down?

If the system once worked normally, then it can only be:-

Airlock caused by the water level being too low at some time.
Blocked pipe.

--
*A conscience is what hurts when all your other parts feel so good *

Dave Plowman London SW
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