LED 5 (Permanent light) High

Ferroli LED 5 (Permanent light) Fault Code

Also written as LED5PERMANENTLIGHT — same fault.

The Ferroli LED 5 (Permanent light) fault code means: your boiler is not receiving the electrical power it needs to turn on, which is usually caused by a tripped switch or a power supply issue.. It appears on 3 Ferroli 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: Electric power supply
Typical repair cost £90-250 (including labour)

DIY fix possible

Check your home's fuse box or consumer unit to see if the boiler's circuit breaker has tripped.Ensure the fused spur switch located near the boiler is turned on.Verify that the plug or connection to the wall socket is secure and hasn't vibrated loose.

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Ferroli models that show the LED 5 (Permanent light) fault code

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

Source

Ferroli LED 5 (Permanent light) fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026