Boiler Fault Code PCB Fault / Contact Installer

Also written as PCBFAULTCONTACTINSTALLER — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026

Fault code PCB Fault / Contact Installer appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's internal computer has either lost its memory or suffered a hardware failure, meaning the system cannot safely operate or talk to the components. (As reported on Ideal Logic+ Combi C)