PCB Saunier Duval Thema C23E
When you turn on the hot water tap or start the heating, the Saunier Duval Thema C23E PCB is responsible for controlling the ignition, the modulation of the burner, the pump, and the safety of the boiler. If you experience that the boiler does not start, locks out, or exhibits erratic behavior, it is possible that this part is failing. This model is compatible with several boilers, including the Thema C 23 E, F 23 E, and other models from the Thema and Themaplus ranges. It is recommended to replace the PCB when these symptoms occur, to restore the proper functioning of your heating system.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 05741000
PCB with reference 05741000. Eight confirmed compatibilities: C 23 E and F 23 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C 23 E | Thema | Contrasted |
| Saunier Duval F 23 E | Thema | Contrasted |
| Saunier Duval C AS 23 E | Thema | Contrasted |
| Saunier Duval F AS 23 E | Thema | Contrasted |
| Saunier Duval C 23 E | Themaplus | Contrasted |
| Saunier Duval F 23 E | Themaplus | Contrasted |
| Saunier Duval C 23 E | Combitek | Contrasted |
| Saunier Duval F 23 E | Combitek | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if ref. 05741000 is the part for your boiler
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 05741000. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the PCB 05741000 resolves.
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite and does not respond to the control.
Cause: If the PCB does not send the start signal, the fan and the gas valve do not activate.
Check the power supply of the boiler and the visible fuses before considering that the PCB is damaged.
- 02
The controls and the temperature selector are not working.
Cause: The PCB controls those signals; if it gets stuck, the panel does not respond even if it is in good condition.
Cut the power for one minute and turn it back on: if the problem returns when turning it on, it could be the PCB.
- 03
The boiler intermittently locks out without a clear pattern.
Cause: Intermittent faults in the control electronics are often due to the relay module or the transformer when they start to fail.
Note when the lock occurs (at startup, after several hours, with humidity) to determine if the problem is with the PCB.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the Saunier Duval 05741000 PCB.
- Catalogue reference
- 05741000
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 11 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Transformer/relay module certification
- TUV, Class I
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval C AS 23 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 05741000
Is this PCB also suitable for the Saunier Duval Combitek F23E?
When should the PCB of the Thema C23E be replaced?
What is the reference for the PCB for the Thema C23E?
How many models are compatible with this PCB?
Are there documented fault codes for this PCB?
Spare parts related to Saunier Duval Thema
