BoilerFaultCodes AM037 Medium
Boiler Fault Code AM037
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code AM037 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is struggling to switch between heating your home and heating your tap water, which may result in a loss of hot water or heating. (As reported on Baxi 400 Combi 2)
Pick your boiler brand for the AM037 fix
Source
Information for the AM037 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 7 July 2026