I have a Worcester 240 combi boiler. The central heating side of
things works fine.
On the domestic hot water side of it, you have to turn a hot tap on
fully to get the burner to light. Once lit, if you turn down the tap
down slightly the burner goes out. The water also gets only slightly
warm if the burner stays lit. I am aware that at high flow rates the
domestic hot water will not get as hot as at lower rates. It is
however not getting anywhere near as hot as it used to.
Does anyone know what is wrong and point me in the right direction?
Thanks in advance.
On Mon, 22 Dec 2003 08:25:14 +0000, Richard wrote:
You may have two faults hee one which has been creeping up for a long time
and one whcih has suddenly come on.
The secondary heat exchanger has probably become choked with limescale and
working much less well.
The new problem is that the water flow detector has become nearly broken
(it is possible that it contains a diaphragm which has split) but jst
works at high flow rates.
Repair the boiler then see if it the DHW heat exchanger needs
Ed Sirett - Property maintainer and registered gas fitter.
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