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Brian, Plumber
Category: UK Plumbing
Satisfied Customers: 848
Experience:  16 yrs. experience as plumber, including full bathroom and kitchen installations.
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My Ferroli optimax he plus 31c boiler is flashing F and

Customer Question

My Ferroli optimax he plus 31c boiler is flashing F and 40/tap symbol & 15 alternately - no radiator symbol?? Pressure is at 1.5
Submitted: 10 months ago.
Category: UK Plumbing
Expert:  Brian replied 10 months ago.

Hi well F40 is High pressure
but as its also flashing a fan fault I am thinking you may have a PCB fault.
I would suggest a reset before calling anyone and also a power down for 5 minutes.