Low
3 P 9 on Ariston HS Premium

Your boiler has reached its programmed time for a routine annual service and is reminding you to book a professional safety check.

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

Scheduled maintenance - call for technical assistance

Engineer required

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

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