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.

What the manual says

Manufacturer manual

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

From this model's manual
Verified against the Potterton Prima 30b installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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