ER 16 + RESET High

Boiler Fault Code ER 16 + RESET

Also written as ER16RESET — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code ER 16 + RESET 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 detected that the water temperature difference between its pipes is too high, causing it to shut down to prevent overheating. (As reported on Johnson Starley Warmcair DW)

Pick your boiler brand for the ER 16 + RESET fix

Johnson Starley ER 16 + RESET 1 model

Source

Information for the ER 16 + RESET 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