BoilerFaultCodes 62:1 to 62:15 Low
Boiler Fault Code 62:1 to 62:15
Also written as 621TO6215 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 62:1 to 62:15 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 notifying you of the current pump run-on settings rather than an actual fault, essentially staying operational for a set time after central heating is turned off. (As reported on Viessmann Vitodens 300-W)
Pick your boiler brand for the 62:1 to 62:15 fix
Source
Information for the 62:1 to 62:15 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