Boiler Fault Code 1E:0

Also written as 1E0 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code 1E:0 appears across 1 boiler brand 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 operating normally using natural gas, and this code is simply providing status information rather than signalling a problem. (As reported on Viessmann Vitodens 333)