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Mend Ferroli Optimax he plus 31 c Boiler Repair Fault

How Do I fix?

Ferroli bioler optimax he plus 31 c
Fault light flashing F35
Boiler working fine
how do i get rid

colin w
October 2010

Ferroli Ferroli Optimax he plus 31 c Heating, Home Heating Systems Boiler Repair Fault

System needs water pressure topping up.
'Boiler working fine' won't be the case for too long unless you do so.

Carefree
October 2010

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Ferroli Optimax F35 Error - Fix Guide