High
Fault on Fan or Flue on Potterton Performa 28i

Your boiler is struggling to breathe safely, meaning it cannot clear away exhaust gases effectively and has shut down to prevent any risk.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Indicates that the flue or flue terminal is blocked or obstructed in some way, or that there is an internal fault.

From this model's manual
Verified against the Potterton Performa 28i installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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