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Mend Ferroli Optimax 31c Boiler Heating

Heating?

I have a ferolli Optimax 31c boiler and it displays a D2 code & the radiators will not come on. Any help would be appreciated.
Thanks

Ali O
September 2011
FerroliFerroli Optimax 31cHeating, Home Heating SystemsBoiler Heating Ferroli

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Mend repair fix Ferroli Optimax 31c home heating systems