BoilerFaultCodes 58 High
Boiler Fault Code 58
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 58 appears across 3 boiler brands and 17 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is unable to heat your hot water because a sensor responsible for monitoring the cylinder temperature has lost its connection or stopped working. (As reported on Viessmann Vitodens 333-F)
Pick your boiler brand for the 58 fix
Source
Information for the 58 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