We've just bought and moved into a flat, and had the old tank and boiler replaced with an Ideal Isar HE24 condensing combi boiler. They removed the old cold water tank so both hot & cold should be mains pressure.
All is well, except for the bath/shower mixer tap. Hot water comes out quite happily when the hot tap is first turned on, but within a minute the flow rate drops rapidly to a dribble, and then stops altogether, even if the tap is opened fully.
Earlier in the week it had been just dropping to a trickle, but I tried it this evening a couple of times and the flow now stops completely.
The tap makes a vaguely high-pitched noise just before it stops.
Cold water comes out of it fine, and hot water comes out of the other taps in the flat continuously with no stop in flow. It's just the bath mixer hot tap that's at fault, so I don't think it's a boiler problem.
Interestingly, although you can't normally turn two taps on at once with the combi, once the bath hot tap has ground to a halt, the bathroom sink hot tap can be opened and a full flow of hot water comes out, as though the bath tap was not open at all.
Would something simple like changing the washer be worth a try, or should I get the experts in?
All is well, except for the bath/shower mixer tap. Hot water comes out quite happily when the hot tap is first turned on, but within a minute the flow rate drops rapidly to a dribble, and then stops altogether, even if the tap is opened fully.
Earlier in the week it had been just dropping to a trickle, but I tried it this evening a couple of times and the flow now stops completely.
The tap makes a vaguely high-pitched noise just before it stops.
Cold water comes out of it fine, and hot water comes out of the other taps in the flat continuously with no stop in flow. It's just the bath mixer hot tap that's at fault, so I don't think it's a boiler problem.
Interestingly, although you can't normally turn two taps on at once with the combi, once the bath hot tap has ground to a halt, the bathroom sink hot tap can be opened and a full flow of hot water comes out, as though the bath tap was not open at all.
Would something simple like changing the washer be worth a try, or should I get the experts in?