BoilerFaultCodes 88:0 Low
Boiler Fault Code 88:0
Also written as 880 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 88:0 appears across 1 boiler brand and 5 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, but the display settings have been changed or reset to show temperatures in Celsius. (As reported on Viessmann Vitodens 200)
Pick your boiler brand for the 88:0 fix
Source
Information for the 88:0 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