BoilerFaultCodes.com
28. High

Your boiler has stopped working because the mechanical fan that pushes exhaust gases out of the flue cannot turn on.

Call an engineer soon

Book a Gas Safe engineer within 24–48 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 £250-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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