Low
Flashing Green on Potterton Prima 30B

Your boiler is working correctly and is simply letting you know that it is currently heating your home or water as requested.

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

Indicates a call for heat to the user

Engineer required

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

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