F Freak1234 Messages 3 Feb 5, 2023 #1 Vaillant ecotec boiler loses pressure when hot water is on and does not work. But heating is working fine with normal pressure . Help plz
Vaillant ecotec boiler loses pressure when hot water is on and does not work. But heating is working fine with normal pressure . Help plz
gmartine Esteemed Gas Engineer Messages 2,343 Feb 6, 2023 #2 If you have Gas Safe get signed up so you can post in the GSE only forum. Upvote 0 Downvote