BoilerFaultCodes E83 483 Medium
Boiler Fault Code E83 483
Also written as E83483 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E83 483 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 having trouble 'reading' the temperature of your hot water storage, which is preventing it from heating your water correctly. (As reported on Potterton Promax 15 & 24)
Pick your boiler brand for the E83 483 fix
Source
Information for the E83 483 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