Low
D.18 on Vaillant Combi Compact 282EB

Your boiler is currently set to run the internal pump continuously, often due to a specific setting or a need to prevent the pipes from freezing.

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

Pump mode return

DIY fix possible

Check if the comfort mode or pre-heat setting is turned onEnsure your external thermostat is not calling for heat constantlyReset the boiler to see if the status code clears

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Related fault codes

D.10View →D.15View →

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