24 High

Dimplex 24 Fault Code

The Dimplex 24 fault code means: your boiler has detected a communication problem with its internal fan, causing the system to get stuck in a safety cycle and preventing the burner from lighting.. It appears on 2 Dimplex 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: Faulty fan signal, no flame and fan runs continuously. Missing ordefective fan signal from fan.
Typical repair cost £180-320 (including labour)

Engineer required

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

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Dimplex models that show the 24 fault code

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

Source

Dimplex 24 fault code information on this page is sourced and cross-checked against the official Dimplex service / installation manuals for each affected model.

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