BoilerFaultCodes E83-126 High
Boiler Fault Code E83-126
Also written as E83126 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E83-126 appears across 2 boiler brands and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is failing to detect a proper flame when trying to light, causing it to lock out and stop providing heating and hot water. (As reported on Biasi Riva Compact 24S (M90E.24S))
Pick your boiler brand for the E83-126 fix
Source
Information for the E83-126 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 31 August 2026