Low
Control Satisfied on Potterton Prima 30B

Your boiler is correctly sensing that your home has reached the temperature set on your thermostat and has gone into a standby mode.

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

Green LED: 2 Per Sec., Red LED: ON

Engineer required

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

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