28. High

Remeha 28. Fault Code

Also written as 28 — same fault.

The Remeha 28. fault code means: your boiler's fan is not spinning correctly, which means the system cannot safely vent exhaust gases and has shut down as a precaution.. It appears on 2 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: Fan does not run. Fan defective or improperly fitted (mechanically or electrically). Fuse F2 (3.15 AT) defective. Transformer defective (power on X3?).
Typical repair cost £250-£550 (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 28. fault code

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

Source

Remeha 28. 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 27 April 2026