E83 458 High

Potterton E83 458 Fault Code

Also written as E83458 — same fault.

The Potterton E83 458 fault code means: your boiler has detected that the internal fan responsible for safely removing exhaust gases is not operating correctly, so it has shut down to keep your home safe.. 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: Fan Assembly c/w ‘O’Ring & Gasket
Typical repair cost £200-350 (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 E83 458 fault code

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

Source

Potterton E83 458 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