BoilerFaultCodesYour boiler is receiving electrical power and is ready for normal operation.
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 neon illuminated - Power is connected to the boiler
What causes this fault?
This is not actually a fault, but a status indicator showing that your boiler is successfully receiving electricity from the mains supply. It means the internal circuitry is live and the unit is technically ready to provide heating or hot water when called upon. If the light is on but your heating isn't working, the issue likely lies with your thermostat settings or an internal component failure rather than an electrical supply problem.
DIY fix possible
Check that your room thermostat is turned upEnsure your programmer or timer is set to 'On'Check if the hot water tap is turned on if you have no heat
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 Power On — no call-out fees, no surprises.
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Potterton Performa 24 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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