just had a new boiler fitted + one of those red expansion tanks both fitted downstairs in a small utility room. The problem is after a couple of hours i have "0-0.5" pressure on the gauge and i was told by my installer that if that happens to turn the inline tap on and refill the red tank till the pressure gets to "1.5-2.0". after a couple of hours it drops again to "0-0.5". i am doing this 3-4 times a day? i have spoken to the installer and he says there must be a leak somewhere. although there are no water traces anywhere? any ideas ? :?:
Last edited by thebungalow on Thu Dec 11, 2008 9:36 am, edited 1 time in total.
Water is escaping from the system that's for certain. If it is not leaking by the pressure relief valve (check outside where the pipe appears) or through a faulty heat exchanger (unlikely in a new boiler) then the only other place is from somewhere else in the heating pipework.
We do have floorboards in the 2 rooms at the front of the house. there is obviouslt a cavity of some sorts under there. is there any other way of finding where the leak could be or do we have to take carpets and floorboards up?
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