Ariston PCB T2 LLS 23 MFFI Ref. 65101374
RefurbishedAristonPCBs (control boards)

Ariston PCB T2 LLS 23 MFFI Ref. 65101374

80 €VAT included

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 up, or the display is unresponsive. Compatible with Desy + 24 CA CPR, Desy + 24 CS CPR, TX 23 MFFI (ref. 65101374). Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
Consult via WhatsApp
Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
65101374
Brand
Ariston
Type of part
PCBs (control boards)
Available units
0 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 65101374) equips these models. Verified compatibility; check the reference before purchasing.

Ecoflam Desy + 24

  • Desy + 24 CA CPR
  • Desy + 24 CS CPR

Ariston (compatible range)

  • TX 23 MFFI
  • TX 23 MI
  • EST 23 MI
  • EST IN 23 MCSI
  • TEC IN 23 MFFI
  • Microgenus 23 MFFI

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.

CodeWhat does it mean?Cause and diagnosis (this part)
301EEPROM error (internal electronic part).The EEPROM memory of the main PCB is corrupted/damaged; check the 230 V power supply and 5/3.3 V voltages on the PCB and bus/display connections; if reprogramming is not possible or the fault persists, replace the PCB.
303Main PCB fault (internal electronic part).Self-diagnosis detects an internal fault in the main PCB; check the network/ground, connectors, and absence of shorts in the PCB; if everything is correct and the code repeats, the cause is the PCB and it must be replaced.
305Main PCB fault (internal electronic part).Main PCB fault with lockout; after checking power supply, wiring, and connectors, if there are no other causes (peripherals/bus), the board is responsible and must be replaced.
306Main PCB fault (internal electronic part).Internal fault recognized by the self-diagnosis on the PCB; confirm voltages and continuity of harnesses, and if there are no external anomalies, replace the PCB.
307Main PCB fault (internal electronic part).Internal fault of the main PCB; if the bus and peripherals are correct, the origin is the PCB itself and it should be replaced.
How do I know if this PCB is for my boiler?
Verify the reference 65101374 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?
The PCB controls the ignition, modulation, sensor readings, and safety features of the boiler.
Is the boiler not igniting, locking out, or is the control board unresponsive?
After ruling out mains voltage, fuse, and connectors, a damaged PCB causes lockouts, blackouts, or erratic display. Repair the external cause before installing the new one.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
After installation, a technician must adjust the service parameters (type of gas, power settings) and check combustion and safety features.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Spare Parts Related Boiler T2 LLS 23 MFFI

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