EL Low

Boiler Fault Code EL

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code EL appears across 2 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 is currently running an automatic air-purging program to remove air bubbles from the system and does not require a repair. (As reported on Viessmann Vitodens 200)

Pick your boiler brand for the EL fix

Ideal EL 1 model Viessmann EL 5 models

Source

Information for the EL 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