What does fault code 301 mean in Chaffoteaux?

EEPROM anomaly of the display/control board. The EEPROM or electronics of the control panel is corrupted or defective; check power supplies and connectors, and confirm by testing with a known-good control panel or by reprogramming/replacing the display board.

What does fault code 302 mean in Chaffoteaux?

Communication fault between the main PCB and the control panel (bus GP‑Display/GP‑GIU). The control panel or its flat cable/connectors fail, and the dialogue with the main PCB is lost; inspect and clean the "nappe," measure 5 V/ground on the display, and if it persists, try replacing the control panel.

RefurbishedChaffoteaux PCBs (control boards)

Chaffoteaux Alixia 25 FF FR Control Panel Ref. 60001296

Name: Chaffoteaux Alixia 25 FF FR Control Panel Ref. 60001296
Brand: Chaffoteaux
SKU: PLCPAMANCHAALIX25
Price: 65 EUR
Availability: InStock

65 €VAT includedIn stock · 1 unit

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 60001296. 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: 60001296
Brand: Chaffoteaux
Type of part: PCBs (control boards)
Available units: 1 unit 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)
301	EEPROM anomaly of the display/control board.	The EEPROM or control panel electronics are corrupt or faulty; check power supplies and connectors, and confirm by testing with a known-good control panel or by reprogramming/replacing the display PCB.
302	Communication fault between the main PCB and the control panel (bus GP‑Display/GP‑GIU).	The control board or its flat cable/connectors fail, and communication with the main PCB is lost; inspect and clean the "nappe," measure 5 V/ground on the display, and if the issue persists, try replacing the control board.