BoilerFaultCodes E06 High
Boiler Fault Code E06
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E06 appears across 17 boiler brands and 118 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 an electrical fault with the sensor that monitors water flow, meaning it cannot safely determine if water is moving through the system. (As reported on Potterton Powermax HE)
Pick your boiler brand for the E06 fix
Alpha E06 29 models Ariston E06 3 models Atag E06 2 models Baxi E06 7 models Biasi E06 12 models Ferroli E06 9 models Halstead E06 6 models Heatline E06 5 models Ideal E06 6 models Johnson Starley E06 4 models Main E06 1 model Potterton E06 5 models Ravenheat E06 9 models Remeha E06 7 models Saunier Duval E06 6 models Viessmann E06 1 model Vokera E06 6 models
Source
Information for the E06 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