Relay 2 energised after 2 sec High

Ferroli Relay 2 energised after 2 sec Fault Code

Also written as RELAY2ENERGISEDAFTER2SEC — same fault.

The Ferroli Relay 2 energised after 2 sec fault code means: your boiler has detected an internal electrical or sensor error that is preventing it from starting up safely.. It appears on 1 Ferroli model 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: Check water flow switch D.H.W., D.H.W. temperature sensor 34, Central heating relay, or replace P.C.B.
Typical repair cost £120-£350 (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 Relay 2 energised after 2 sec fault code

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

Source

Ferroli Relay 2 energised after 2 sec 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