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Mend Saunier Duval Valiant Boiler Heating Error Code

error code on valiant boiler?

what does error code f11 and f64 mean?

chris
January 2011
Saunier DuvalSaunier Duval ValiantHeating, Home Heating SystemsBoiler Heating Error Code
Both faults refer to a defective ntc and/or wiring (could be flow or return), if they are changed and the problem persists, the pcb is faulty.

Carefree
January 2011

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