How much does it cost to fix Ferroli error code LED1?

Typical repair cost for the Ferroli LED1 fault is £100-250 including labour.

LED1 High

Ferroli LED1 Fault Code

Q: What does the Ferroli LED1 fault code mean?

Your boiler is not detecting the stable electrical power it needs to function correctly, which is usually caused by a loose connection or an issue with your home's power supply.

The Ferroli LED1 fault code means: your boiler is not detecting the stable electrical power it needs to function correctly, which is usually caused by a loose connection or an issue with your home's power supply.. It appears on 8 Ferroli models in our database.

Technical description: Mains electricity on/low voltage on

Typical repair cost £100-250 (including labour)

Engineer required

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

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Ferroli models that show the LED1 fault code

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

Source

Ferroli LED1 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