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Zanussi Fault Codes

Welcome to the fault-codes section of this site. The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault code. Suggested repair solutions may be provided by a link to a repair page. NB Some fault codes are only applicable to a specific range of boilers only.

C0LinkBoiler chip card (BCC) activation fault
C2LinkBoiler chip card (BCC) fault
F1LinkLow water pressure
F2LinkFlame loss
F3LinkFan fault
F4LinkFlow thermistor
F5LinkReturn thermistor
F6LinkOutside sensor failure
F7LinkLow mains voltage
F9LinkUnconfigured printed circuit board (PCB)
L1LinkFlow temperature overheat or no water flow
L2LinkFlame loss
L5Link5 boiler resets in 15 minutes
L6LinkFalse flame lockout

Disclaimer: Information on this website is provided for informational purpose therefore we cannot accept liability for subsequent problems. All repair tasks should be carried out by qualified trades people. We may also receive commission payments when you are taken to external websites and complete purchases from third party sellers, once you leave our site, we cannot be held liable for your purchases.