Low
S.07 on Vaillant ecoTEC Pro 30

Your boiler is simply moving leftover warm water around your heating pipes to distribute the remaining heat, which is a normal part of its cooling-down process.

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

Heating mode: Pump overrun

Engineer required

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

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