I recently had a new combination boiler fitted but since 2 days after installation the pressure drops to zero frequently and I need to re-pressurise the system 2+ times a day.

The team that installed it have been back, checked their pipe work and informed me that I must have a leak somewhere in the old pipe work.

There are no obvious signs of a leak within the property and I have had a family member check all the pipes he can get to, under floorboards, etc and no leak can be found.
I have since noticed that the boiler “kicks in” for a short time when I have had the cold taps running, and putting two and two together I wondered if this could be a cause of the problem. The boiler does seem to lose pressure more quickly when the washing machine (cold water feed) has been on or if I have been watering the garden, so I wondered if it was related?

Many thanks in advance.

VS, April 2011

if its new fitted its guarantee from manufacture for one year,lost water preasure in system its preasure vessel is faulty

lal, April 2011