Low
D.7 on Vaillant Combi Compact 242EB

Your boiler is displaying an information code rather than a fault, showing the temperature set for the pre-heated hot water function.

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

Warm start temperature target value

DIY fix possible

Locate the right-hand control knob on the boiler fasciaTurn the knob clockwise to enable or increase the warm start temperatureTurn the knob fully anti-clockwise until it clicks to disable the warm start feature if not required

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Related fault codes

D.0View →D.1View →D.4View →

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