E17 High

Boiler Fault Code E17

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E17 appears across 3 boiler brands and 6 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)

Pick your boiler brand for the E17 fix

ECA E17 4 models Vokera E17 1 model Warmhaus E17 1 model

Source

Information for the E17 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