Low
S.07 on Vaillant Combi Compact 242EB

Your boiler has finished its heating cycle and is now keeping the internal pump running for a short time to safely cool down the internal components.

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 error

DIY fix possible

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

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful