i have had my boiler for just over 2 years it has started flashing LF and when it does this i have no hot water or heating i had a plumber in to fix it and he seemed to have fixed it now it has started up again the boiler is ideal isar
LF is a flame detection (or rectification) error, you will need to get your serviceman back to readjust (or replace) the flame rectification device, most times a proper adjustment should reslove this problem
