ER 19 + SPANNER Medium

Boiler Fault Code ER 19 + SPANNER

Also written as ER19SPANNER — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code ER 19 + SPANNER 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 is struggling to provide hot water because the sensor that monitors the temperature of the incoming cold water has stopped working correctly. (As reported on Johnson Starley Warmcair DW)

Pick your boiler brand for the ER 19 + SPANNER fix

Johnson Starley ER 19 + SPANNER 1 model

Source

Information for the ER 19 + SPANNER 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