E02-350 Emergency

Potterton E02-350 Fault Code

Also written as E02350 — same fault.

The Potterton E02-350 fault code means: your boiler is failing to ignite or stay lit because the internal gas distribution system is blocked or malfunctioning.. It appears on 1 Potterton model in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Injector 4.7 - CFL/RSL100
Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Potterton models that show the E02-350 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Potterton E02-350 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