How much does it cost to fix boiler error code PCB Fault?

Typical repair cost for the boiler PCB Fault fault is £250-450 including labour.

PCB Fault High

Boiler Fault Code PCB Fault

Also written as PCBFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code PCB Fault appears across 3 boiler brands and 11 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has experienced an internal computer failure and has shut down for safety, meaning it will no longer provide heating or hot water. (As reported on Potterton Performa SL HE 9 2)

Pick your boiler brand for the PCB Fault fix

Baxi PCB Fault 1 model Ideal PCB Fault 8 models Potterton PCB Fault 2 models

Source

Information for the PCB Fault fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026