Heat & hot water stopped 2 days ago, boiler flashing fd. Followed trouble shooting in manual and ordered a new water flow sensor. Was replaced today, still no blue light and still flashing fd. New plumber called, he replaced pump and told us to bleed rads and all will be fine. 5 hours later...
Went to service logic heat 15 today with complaint of L2 showing and having to reset to get it going . Hadn't been serviced in five years from new ... The heat exchanger and siphon were gunged up with aluminium oxide sediment , cleaned thoroughly., cleaned spark and sensor probes ,checked flow...
Hi all,
New to the forum.
Last night, while running hot water from our Logic Combi 35 boiler the front display started displaying F-1 and stopped producing any hot water. Of course this usually means low pressure, however the gauge is showing 2.5Bar.
There is plenty of pressure at the hot...