Boiler Fault Code 62:2

Also written as 622 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code 62:2 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's internal pump is running longer than expected to cool the system down, which may indicate a minor circulation issue or a sensor communication glitch. (As reported on Viessmann Vitodens 300-W)