Central Heating

Worcester R25 & 30 HE Combi boiler dropping to zero when heating turns off

Anonymous user 28/02/2024 - 3.10 PM

The boiler pressure is dropping to zero when the heating turns off, this usually takes around 15-20 minutes. When the heating is on the pressure is between 2-3 on the gauge. The pressure does not move from zero when we run the hot water (when the heating is off). There was a very small drop of water (one drop of water after 3 hours of the heating been on - had a green colour to it) leaking from the copper pipe that runs outside from the boiler. There are no visible leaks around the boiler or radiators. We have not taken any floorboards up as yet.