BoilerFaultCodesPotterton 50°C neon flashing Fault Code
Also written as 50CNEONFLASHING — same fault.
The Potterton 50°C neon flashing fault code means: your boiler has detected a fault and needs to be restarted, but if the light continues to flash, there is an underlying issue that prevents it from working reliably.. It appears on 2 Potterton models in our database.
Technical description: Go to section ‘J’ - Turn the selector to reset. If regular resetting is required or appliance still does not operate investigation is necessary.
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 →Avoid the next call-out bill
A cover plan would handle faults like 50°C neon flashing: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Potterton models that show the 50°C neon flashing fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton 50°C 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 7 July 2026