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Mend Ferroli optimax 25c Flashing Fault Heat

Problems with Ferroli optimax 25c?

Not long after service. Not flashing fault just two dashes. No heat no hot water. And gushing sound coming from it. Help!! Need to do the dishes!!

Emma
October 2009
FerroliFerroli optimax 25cHeating, Home Heating SystemsFlashing Fault Heat
Heaters work but when i put on hot water it shuts down. Fault code F3. Is this an expensive repair>

sam
November 2009

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