Low
D.81 on Vaillant Combi Compact 242EB

This is a status code rather than a fault, showing you how long the boiler has spent heating your hot water.

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

Operating hours hot water generation

DIY fix possible

Press the 'i' button to exit the information menuMonitor for any actual fault codes if performance is poorNo action is required as this is an advisory information screen

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Related fault codes

D.80View →D.82View →D.83View →

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