I have an Ariston Grasslin Combi boiler. Been away for Christmas and boiler isn't firing up. Heating and water are on on the dial, timer has been playing up for a while but the boiler has always fired up when turned on manually. Pressure is at 1 and abit in the blue
Answers & Comments
Try represureing to 1.5 bar you may have a sludged up low water presure switch