Low
COdE on Atag Q 25CR

Your boiler is asking for a secure service password, which usually appears during routine maintenance or setup and indicates it is currently locked from standard operation.

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

Prompt to enter the installer access code.

Engineer required

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

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