We have what I think is a Mayfair Como mono mixer tap, which is only about
18 months old (part of a new kitchen), and have always had to wait for hot
water to appear but we put up with that.
Recently we had a repair done to our combination boiler because of
inconsistent domestic hot water supply (lots of visits from engineers, lots
of things tinkered with - but new PCB seems to have fixed the problem) .
Our DHW delivery is different, but it's absolutely fine upstairs - power
shower, bath tap, basin tap, but the kitchen mixer tap does not want to run
hot, just warm with little bursts of hot.
Is there an obvious remedy that I (non plumber) cannot see?
It sounds like there's a fault with the tap itself. Have you tried feeling
whether the pipe below the sink gets hot ? if it does then the problem is
above. Just an idea. Maybe try changing the tap if you can do it or maybe
there's a guarantee.
I had a similar problem which turned out to be the mixer tap allowing cold
to flow into the hot through the internals of the mixer tap. Had to replace
the tap. Try disconnecting(isolating) the cold from the tap and see if it
runs hot then.
Thank you Joe & Jim,
In following your advice, I checked the flexible connecting pipes below the
Kitchen tap, and although I made no adjustments to anything, I did 'waggle'
said pipes about a bit, then set tap to run in 'hot' mode, and got the
hottest water we've had since kitchen was fitted 18 months ago.
This makes me wonder if there was some debris in there somehow restricting
flow of hot water - time will tell, and if problem recurs then I'll take
connections and flexible pipe apart to clean out.
Thank you both again for your help
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