Low
d.05 on Vaillant Turbomax Plus VUW 242EH

Your boiler is simply displaying the current temperature setting for the water it is heating for your radiators.

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.

What the manual says

Manufacturer manual

Flow temperature setting °C

From this model's manual
Verified against the Vaillant Turbomax Plus 824 828e installation & service manual, page 39.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your boiler's control dial to see if it is set to the desired radiator temperaturePress the 'i' button on your boiler display to toggle back to the normal operational viewMonitor the boiler to ensure it continues to heat your home as expected

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