Low
S.27 on Heatline Monza

Your boiler is simply moving water around the system for a few minutes after the heating has turned off to make sure the leftover heat is safely cleared.

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

Post run pump

Engineer required

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

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