High
24 on Dimplex System 30

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.

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

Faulty fan signal, no flame and fan runs continuously. Missing ordefective fan signal from fan.

From this model's manual
Verified against the Dimplex System 30 installation & service manual, page 8.
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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