Saunier Duval PCB Thema NOx Display F24 Ref. 0020021652
RefurbishedSaunier DuvalPCBs (control boards)

Saunier Duval PCB Thema NOx Display F24 Ref. 0020021652

30 €VAT includedIn stock · 21 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 up, or the display is unresponsive. Compatible with F24E, F30E (ref. 0020021652). 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
0020021652
Brand
Saunier Duval
Type of part
PCBs (control boards)
Available units
21 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020021652) equips these models. Verified compatibility; check the reference before purchasing.

Semia Condens

  • F24E
  • F30E

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)
F.11Communication fault between the main PCB and the user interface (display).The display PCB (0020021652) or its connection cable is not communicating with the main control board. Check continuity and connectors of the harness between the display and the main PCB, and ensure power supply to the interface; if the issue persists, test/replace the interface.
F.18User interface fault (display PCB).The display board itself is defective. Check that it is receiving voltage and that the communication cable/bus is correct; if the power supply and wiring are correct, replace the interface module.
F.20Software incompatibility: incorrect user interface or main board/appliance code error.An incompatible display board or one with incorrect coding has been installed in relation to the main board/model. Check the appliance code and interface reference in the service menu; reconfigure/update or replace with the correct reference (0020021652 for these models).
How do I know if this PCB is for my boiler?
Verify the reference 0020021652 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.
Scroll to the top