BoilerFaultCodesPotterton E83488 Fault Code
The Potterton E83488 fault code means: your boiler has detected an issue with the internal seals or gas components, which usually means it has locked itself out for safety reasons.. It appears on 1 Potterton model in our database.
Technical description: ‘O’Rings/Seals Kit - Gas Components
What causes the Potterton E83488 fault?
This fault occurs when the boiler detects a potential leak or failure within the internal gas delivery system or the airtight seals around the burner. The most common reason is that the rubber 'O' rings or gaskets have degraded over time due to high operating temperatures, preventing the unit from maintaining a safe internal environment. Depending on the exact sensor reading, it may also indicate that the gas valve itself is failing to regulate the flow correctly.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Potterton models that show the E83488 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton E83488 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