A couple of days ago we suffered a burst water main and have been without water until it was restored today via a temporary over land feed. However, the boiler will now not fire for either hot water/central heating, and the error code E119 is flashing. This seems to relate to a low pressure issue, but the pressure gauge on the boiler is well in the green on 1 bar. I've tried resetting and switching boiler off/on again, but nothing is shifting it. Any ideas please? The boiler is a Main Combi 30 Eco. Thanks in advance.