How much does it cost to fix boiler error code primary NTC open/short circuit?

Typical repair cost for the boiler primary NTC open/short circuit fault is £120-200 including labour.

primary NTC open/short circuit High

Boiler Fault Code primary NTC open/short circuit

Also written as PRIMARYNTCOPENSHORTCIRCUIT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code primary NTC open/short circuit 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 temperature sensor is faulty or disconnected, causing the system to stop working because it cannot accurately measure how hot the water is. (As reported on Vokera Compact HE)

Pick your boiler brand for the primary NTC open/short circuit fix

Vokera primary NTC open/short circuit 1 model

Source

Information for the primary NTC open/short circuit 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 7 July 2026