Thanks oil head. The gauge didn't go back up either time when I turned the tap off and I had to repressurise the boiler after the second time as the gauge had dropped below 0.5 bar. I last topped it up last weekend so the problem appears to be getting worse. If there's a problem with the flow...
Hi, I'm looking for some advice regarding a Worcester Bosch Greenstar Heatslave 18/25 oil boiler. It's been installed around 18 months and it's started to slowly lose pressure. Until today that is when I turned on the hot tap to wash my hands and the pressure gauge dropped a notch. A little...