BoilerFaultCodesPotterton Power On Neon Fault Code
Also written as POWERONNEON — same fault.
The Potterton Power On Neon fault code means: this light simply shows that your boiler is receiving electrical power and is switched on.. It appears on 1 Potterton model in our database.
Technical description: Illuminates to indicate that the electricity supply is turned on.
What causes the Potterton Power On Neon fault?
This is a normal status indicator rather than a fault, confirming that the internal control board is receiving 230v mains electricity. If this light is off, it usually means the boiler has blown a fuse, the external isolation switch is turned off, or there is a failure in the local power supply. As long as this light is glowing, the boiler has the electrical power it needs to begin the ignition sequence.
DIY fix possible
Ensure the main power switch for the boiler is in the 'ON' positionCheck that the fuse in the spur hasn't blown if the light fails to illuminateMonitor the boiler for normal operation as this light indicates standard power status
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Gas Safe Register →Potterton models that show the Power On Neon fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton Power On Neon fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026