BoilerFaultCodesPotterton 60° neon flashing Fault Code
Also written as 60NEONFLASHING — same fault.
The Potterton 60° neon flashing fault code means: your boiler has stopped working because it cannot safely vent waste gases or confirm that the fan is running correctly.. It appears on 3 Potterton models in our database.
Technical description: Fan or flue fault (Air pressure switch not proved)
What causes the Potterton 60° neon flashing fault?
This fault occurs when the boiler's safety sensors cannot confirm that the fan is successfully clearing waste gases from the system. The most common reasons are a failing fan motor or a blockage in the small plastic tubes that monitor air pressure, preventing the boiler from firing safely. Exposure to dust or worn bearings in the fan assembly usually triggers this shutdown to prevent carbon monoxide risks.
This issue is more frequent during periods of high wind or extreme cold, as external gusts can disrupt pressure readings and freezing temperatures may cause debris to shift within the flue.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Potterton models that show the 60° neon flashing fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton 60° neon flashing 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