DIY Doctor UK DIY Forums

My combi boiler appears to have turned off overnight and the water pressure gauge is now showing as zero - but I can find no leaks in the system.

Is there anyway to refill/repressurize the system ?

Yes, there should be two valves on or near the boiler, connect these with the braided hose (should have been supplied) and refill the system)

It depends on how often/how long it takes to drop to zero - if you have to re-pressurise often then you need to find the leak, every year - you'll probably never find it.

htg