In an earlier contribution to this discussion,
spot wrote:

I have a Saunier duval combi boiler and when i turn the hot tap on it
comes out cold for about 40 seconds before warming up, I then have to
turn down for it to heat up. Have changed thermister to no effect. Any
ideas please?

Sounds like a pretty typical combi to me! Isn't that what it's *supposed* to
do?
--
Cheers,
Roger
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