Medium
D.70 on Vaillant Combi Compact 282EB

Your boiler is currently stuck in a configuration mode where it is trying to decide whether to send heat to your radiators or your hot water taps.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Set diverter valve position

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F.70View →

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