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Mend Saunier Duval Isofast F35E Home Heating Systems

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Mend repair fix Saunier Duval Isofast F35E home heating systems

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Mend Saunier Duval Isofast F35E Boiler Pcb

How canI fix my sarnier duval boiler?

we have a saurnier duval isofast f35e boiler. Engineer fitted a pcb because following elacement of fuse warning triangle was flashing but no fault showing. After PCB fitted, fault ff07 showing - domestic hot water thermistor. Engineer fitteed two thermistors - now showng fault ff20 - communication. System hasnt fired up at all, can anyone give any advice?

snowman
December 2009
Saunier DuvalSaunier Duval Isofast F35EHeating, Home Heating SystemsSaunier Duval Boiler Pcb

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