E02-347 High

Potterton E02-347 Fault Code

Also written as E02347 — same fault.

The Potterton E02-347 fault code means: your boiler has failed to light the flame properly, meaning it cannot produce heat or hot water because the ignition system is not functioning.. It appears on 1 Potterton model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Burner - Aeromatic - CFL/RSL90 - 100
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 E02-347 fault code

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

Source

Potterton E02-347 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