Ferroli LED 2 Fault Code
Also written as LED2 — same fault.
The Ferroli LED 2 fault code means: your boiler detects water flowing through the system even while the tap is turned off, causing it to run continuously or lock out to prevent overheating.. It appears on 5 Ferroli models in our database.
Technical description: Flowmeter (136) on
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Ferroli models that show the LED 2 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ferroli LED 2 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