08 High

Remeha 08 Fault Code

The Remeha 08 fault code means: your boiler is struggling to clear air out of its system or is failing to pull in enough fresh air to burn correctly, causing it to shut down for safety.. It appears on 3 Remeha models 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: Air transport
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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Remeha models that show the 08 fault code

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

Source

Remeha 08 fault code information on this page is sourced and cross-checked against the official Remeha service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026