Hi everyone, Iam new to this forum but already have a question I have a kempotig 250 ac/dc tig welder that always worked fine. Now i have not used it for a while it wont start anymore. When i press the start button gas flows (i also hear the relay of gas clicking) but it wont start (high frequent start as well as strike start). Also there is a light burning of H7 it says in the manual, "pressure guard", so i thought my water pressure measure gauge was broken, but it was already connected true (see picture). I already checked the 3 circuits in the picture, but i cannot find a visual defect on any of the capacitors. (https://www.mig-welding.co.uk/forum/threads/my-own-kempotig-250-ac-dc-problems.33500/) Can anyone help me with a wire schematic or a tip what i can check and why this light is burning? Thanks ahead!