I only tried the kitchen tap, as it's right next to the boiler.
It's a mixer tap and I can very quickly turn it full on.
The bathroom taps do NOT have the same problem.
So, you might be right, it's the tap!
Boy, do I feel silly.
Thanks
Hi there,
My boiler has suddenly developed a fault on the hot water side.
Yesterday when I turned a hot tap on with low flow everything was fine.
If I increased hot water flow to maximum I heard a soft 'klunk' from the boiler and water flow ceases competely.
After a few seconds I coud...