BoilerFaultCodesYour boiler has stopped working because there is not enough water pressure in the system or the internal pump cannot move water around your radiators.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Illuminates if the circulating pump is faulty or the system pressure drops below the minimum requirement.
What causes this fault?
This fault occurs when the boiler detects that there is either insufficient water volume to operate safely or that the water isn't being pushed through the pipes. The most common reason is a simple drop in system pressure due to a small leak or recently bled radiators, but it can also be caused by a mechanical failure of the internal pump. Without enough pressure or flow, the boiler shuts down to prevent the heat exchanger from overheating.
This issue often surfaces in autumn when the heating is turned on for the first time after summer, as the pump can seize during long periods of inactivity.
DIY fix possible
Check the pressure gauge on the front of the boiler; it should ideally be between 1 and 1.5 bar.If the pressure is low, locate the filling loop (a flexible silver hose) under the boiler and slowly open the valves until the needle reaches 1 bar.Turn the selector switch to the reset position for five seconds, then back to the heating or hot water position.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like Pump/Low Pressure Neon — no call-out fees, no surprises.
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Potterton Performa 24 Eco HE is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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