Medium
E52 on Biasi Basica System 2022

Your boiler has been locked for security because too many attempts were made to reset it remotely or via an app.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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

Maximum number of remote unlock attempts.

DIY fix possible

Locate the physical reset button on the boiler control panelPress and hold the reset button for at least 5 secondsWait for the display to clear and the boiler to restart

Find a Gas Safe engineer
Search the official register →

Related fault codes

E01View →E03View →

Related guides you might find useful

Boiler keeps cutting out

Lockout fault with a reset-needed pattern.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →