How much does it cost to fix boiler error code max err .?

Typical repair cost for the boiler max err . fault is £100-350 including labour.

max err . High

Boiler Fault Code max err .

Also written as MAXERR — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code max err . 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 has failed to complete its automatic self-adjustment process, which is necessary for it to run efficiently and safely. (As reported on Biasi Antares System)

Pick your boiler brand for the max err . fix

Biasi max err . 1 model

Source

Information for the max err . 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