LED 2 on P.C.B. alight Low

Ferroli LED 2 on P.C.B. alight Fault Code

Also written as LED2ONPCBALIGHT — same fault.

The Ferroli LED 2 on P.C.B. alight fault code means: your boiler is receiving electrical power, but if the display isn't working otherwise, there may be a blown fuse on the internal circuit board.. It appears on 1 Ferroli model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Electric mains on; if not check fuses 2 Amp. and 125 mAmp. on P.C.B. and external fuses
Typical repair cost £90-180 (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 LED 2 on P.C.B. alight fault code

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

Source

Ferroli LED 2 on P.C.B. alight 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