OPTIMAX HE PLUS 38C High

Ferroli OPTIMAX HE PLUS 38C Fault Code

Also written as OPTIMAXHEPLUS38C — same fault.

The Ferroli OPTIMAX HE PLUS 38C fault code means: your boiler has failed to light the flame after several attempts, meaning you currently have no heating or hot water.. 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: A01
Typical repair cost £120-400 (including labour)

DIY fix possible

Check if your gas supply is turned on and other gas appliances are workingPress the Reset button on the control panel for 1 secondIf you have a prepayment meter, check that you have enough credit

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Ferroli models that show the OPTIMAX HE PLUS 38C fault code

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

Source

Ferroli OPTIMAX HE PLUS 38C 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 7 July 2026