Low
D.72 on Vaillant Combi Compact 242EB

Your boiler is briefly running its internal pump after heating your water to help cool the components down and prevent overheating.

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 overrun time after warm start

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

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Related fault codes

D.71View →

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