What does the F5 code mean in Fagor?

Name: Fagor PCB MF 12 N Ref. MU0104200
Brand: Fagor
SKU: PEFMF12N
Price: 65 EUR
Availability: InStock

Control board fault (internal fault in the electronic circuit). The control PCB fails due to damage in components/power supplies or software protection; the boiler locks out. Verify by measuring 230V→low voltages on the PCB, connectors, and relays, and ideally with a cross-test by temporarily replacing the board MU0104200.

RefurbishedFagor PCBs (control boards)

Fagor PCB MF 12 N Ref. MU0104200

65 €VAT includedIn stock · 6 units

PCB (control board): refurbished spare part that controls the ignition, modulation, and safety features of the boiler. Useful if the boiler does not ignite, locks out, or the display is unresponsive. Reference MU0104200. Includes a one-year warranty and delivery within 2–4 working days in the EU.

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Delivery in 2–4 working days

1-year warranty

14-day return

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Key Data

Reference: MU0104200
Brand: Fagor
Type of part: PCBs (control boards)
Available units: 6 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

Code	What does it mean?	Cause and diagnosis (this part)
F5	PCB fault (internal fault of the electronic circuit).	The control PCB fails due to damage in components/power supplies or software protection; the boiler locks out. Check by measuring voltages 230V→low on the PCB, connectors, and relays, and ideally with a cross-test by temporarily replacing the board MU0104200.