E19 High

Boiler Fault Code E19

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E19 appears across 12 boiler brands and 37 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 water is not moving through the system correctly, causing a temperature imbalance that has shut the unit down for safety. (As reported on Warmhaus Enerwa / Priwa)

Pick your boiler brand for the E19 fix

Alpha E19 5 models Atag E19 1 model Baxi E19 1 model Biasi E19 4 models Halstead E19 6 models Johnson Starley E19 1 model Keston E19 7 models Potterton E19 2 models Remeha E19 1 model Saunier Duval E19 6 models Vokera E19 2 models Warmhaus E19 1 model

Source

Information for the E19 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