Low Information
58:1 to 58:95 on Viessmann Vitodens 300-W

Your boiler is notifying you of an incorrectly set or restricted hot water temperature limit that needs adjustment in the system settings.

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

Input of set DHW value 2; adjustable from 1 to 95°C (observe coding address 56)

What causes this fault?

This code appears because the boiler has received a manual request to change the domestic hot water temperature to a secondary set value. It is typically triggered by a user or a specific heating program adjusting how hot the water in your taps should be. Because it is an informative notification rather than a mechanical failure, it does not indicate that a part has broken.

DIY fix possible

Navigate to the boiler's control panel menuLocate the hot water temperature settingsAdjust the maximum set point to your desired temperature (typically 55-60°C)Refer to address 56 in your user manual if the setting remains restricted

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Related fault codes

E5View →F2View →

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