BoilerFaultCodesPotterton E83468 Fault Code
The Potterton E83468 fault code means: your boiler has detected a problem with the internal sensor that monitors the flame, meaning it cannot confirm it is burning fuel safely and has stopped working.. It appears on 1 Potterton model in our database.
Technical description: Electrode/Ionization Kit Incl.key no’s 8 & 9
What causes the Potterton E83468 fault?
This fault occurs when the boiler's internal computer can no longer detect a steady flame during the ignition process. The most common reason is that the detection probes have become carbonised or worn out over time, preventing them from sending the necessary electrical signal to confirm it is safe to keep the gas on.
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 E83468 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton E83468 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