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ferroli optimax he 31c?

i keep grtting code f 40 and i have lost my instruction book so i dont know what it means could you please advise me what to do

mrs a chapman
March 2008
FerroliHeating, Home Heating SystemsFerroli Optimax He 31c
wot is f 15

alan
October 2012
my radiators rattle any Suggestion of how to fix the problem

GARRY
February 2012
This is a incorrect water pressure eroor code, too high

harv
April 2008
F40 = Incorrect System Water Pressure

Possibly too high? Above 3 bar?

If so, make sure your filling loop is isolated, and bleed of excess
water through a bleed valve on a radiator until at correct pressure.

If you want the manual, email me tony@oilburnerservices.com

T
March 2008

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