Low
D.80 on Vaillant Combi Compact 242EB

This is not an error code, but simply a status message on your boiler's screen showing how many hours the heating system has been running.

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 heating

DIY fix possible

Press the 'i' button to exit the information menuNo action is required as this is an advisory information screen, not a fault

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Related fault codes

D.81View →D.82View →

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