Got up on Wednesday morning no hot water, (only cold water coming out of hot tap). Checked boiler, it had zero pressure and F1 fault showing. So I refilled the pressure using the filling loop, up to about 1bar which is where it usually is, which worked fine, had hot water all day.Hi, my Ideal Logic Combi (ESP1 / 35) has developed an F1 low water pressure fault.
Same thing happened on Thursday morning, got up no hot water, F1 fault, so refilled again, was ok all day.
Then same thing again today, however, after refilling to 1bar today, the pressure drops back to zero after about 10 mins.
As far as I know there are no leaks on the system, theres no water leaks showing anywhere and no damp patches?
Does anyone know what could be causing this?
NB: the boiler is only 5 to 6 years old.
EDIT: just seen another post on Ideal Logic 35 with similar issue, and a previous suggestion was that it might be a pressure sensor, or possibly a circ pump issues (as some pressure sensors do not sense the static head, but use the pressure at the pump instead?), so if an issue with the pump or sensor that could cause F1 fault? what do you think?
Thanx
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