My combi boiler keeps decreasing the water pressure every time I run a hot tap. I have been re-filling the boiler regularly after using hot water. This has been a problem for the last week and I've tried bleeding the radiators but that didn't solve the problem. What do I do now?

Kate, March 2009

Its a Worcester 24i. The water pressure increases then drops when hot water runs and heating is in. Have discovered it is dripping hot water from a pipe- starts off as a heavy drip then lessens, the pressure then drops too.

Kate, March 2009

does the pressure rise while the hot tap is running then drop afterwards? what make/ model boiler do you have?

matt, March 2009