My Vaillent combi boiler is low on water. How do I fill it up?
Did it pop off, why is it low?
THINK YOU WILL FIND YOU NEED TO RE-PRESSURIZE THE BOILER TO GET IT TO WORK, ON BOILER LOOK FOR THE DIAL WITH THE RED NEEDLE AS WELL AS BLACK. BELOW BOILER IS OR SHOULD BE A PIPE CONECTOR THAT YOU TURN ON WITH A SCREW DRIVER TO REPRESSURISE, DO NOT EXCEED THE MARK ON THE DIAL. ITS HOW I DO MINE.
