Low Information
62:1 to 62:15 on Viessmann Vitodens 050-W

Your boiler's pump is set to run for a specific amount of time after the heating switches off to help the system cool down safely.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Run-on time adjustable from 1 to 15 minutes

What causes this fault?

This is not a mechanical failure but rather a custom setting that dictates how long the internal pump continues to circulate water after the burners have turned off. It is designed to dissipate residual heat from the heat exchanger to protect the internal components from overheating. If you see this code, it simply means the boiler is carrying out its programmed cooling cycle before coming to a complete stop.

DIY fix possible

Check your user manual to see if the run-on time is set to your preferenceMonitor the boiler to ensure it shuts down correctly after the timed periodNo action is required if the heating and hot water are functioning normally

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