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Mend Ferroli HE31C Home Heating Systems

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Mend Ferroli HE31C Boiler Heating Repair

How can i fix my ferroli he31c boiler?

i woke up this morning to find my boiler not working, every time i turn it on R4 appears... does anyone know what this means and how can i fix it please?

aaron
January 2013
FerroliFerroli HE31CHeating, Home Heating SystemsBoiler Heating Repair

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