How much does it cost to fix Ferroli error code RL2/RLX (not energised)?

Typical repair cost for the Ferroli RL2/RLX (not energised) fault is £120-200 including labour.

RL2/RLX (not energised) High

Ferroli RL2/RLX (not energised) Fault Code

Q: What does the Ferroli RL2/RLX (not energised) fault code mean?

Your boiler has detected a loose or disconnected internal electrical wire, which is preventing it from safely communicating with its internal components.

Also written as RL2RLXNOTENERGISED — same fault.

The Ferroli RL2/RLX (not energised) fault code means: your boiler has detected a loose or disconnected internal electrical wire, which is preventing it from safely communicating with its internal components.. It appears on 2 Ferroli models in our database.

Technical description: Wiring defect: check wiring on (66-67-68)

Typical repair cost £120-200 (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 RL2/RLX (not energised) fault code

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

Source

Ferroli RL2/RLX (not energised) 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