E384 High

Boiler Fault Code E384

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E384 appears across 3 boiler brands and 27 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler thinks a flame is present even though it hasn't been told to light, causing the system to shut down for safety. (As reported on Potterton Assure Combi / System)

Pick your boiler brand for the E384 fix

Baxi E384 24 models Main E384 1 model Potterton E384 2 models

Source

Information for the E384 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