
PCB Vaillant Group Saunier Duval Themafast C 24 E Ref. S1047000
Main PCB for Saunier Duval boilers (Isofast, Isotwin, Themaclassic, Themafast, Thematek). The original box confirms the reference S1047000, equivalent to the abbreviated code S10470 from the current catalog. It is a multi-brand spare part from the Vaillant group, also sold as Saunier Duval, awb, Bulex, Glow-worm, Hermann Saunier Duval, and Protherm. It operates at 230V; no external manufacturer of the circuit is identified.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference S10470
PCB with reference S10470. 33 verified compatibilities: F 25 E and F 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F 25 E | ThemaClassic | Contrasted |
| Saunier Duval F 24 E | ThemaClassic | Contrasted |
| Saunier Duval C 24 E | ThemaClassic | Contrasted |
| Saunier Duval C 25 E | ThemaClassic | Contrasted |
| Saunier Duval C AS 24 E | ThemaClassic | Contrasted |
| Saunier Duval C AS 25 E | ThemaClassic | Contrasted |
| Saunier Duval F AS 24 E | ThemaClassic | Contrasted |
| Saunier Duval F AS 25 E | ThemaClassic | Contrasted |
| Saunier Duval F AS 30 E | ThemaClassic | Contrasted |
| Saunier Duval C 24 E | Themafast | Contrasted |
| Saunier Duval C 25 E | Themafast | Contrasted |
| Saunier Duval C 28 E | Themafast | Contrasted |
| Saunier Duval C 30 E | Themafast | Contrasted |
| Saunier Duval F 24 E | Themafast | Contrasted |
| Saunier Duval F 25 E | Themafast | Contrasted |
| Saunier Duval F 25 E H-MOD | Themafast | Contrasted |
| Saunier Duval F 30 E | Themafast | Contrasted |
| Saunier Duval F 30 E H-MOD | Themafast | Contrasted |
| Saunier Duval C 24 E | Thematek | Contrasted |
| Saunier Duval C 24 EO BT | Thematek | Contrasted |
| Saunier Duval F 24 E | Thematek | Contrasted |
| Saunier Duval S C 24 E | Thematek | Contrasted |
| Saunier Duval S F 24 E | Thematek | Contrasted |
| Saunier Duval C 24 EA | Isotwin | Contrasted |
| Saunier Duval C 28 EA | Isotwin | Contrasted |
| Saunier Duval C 24 E ad04 | Isotwin | Contrasted |
| Saunier Duval C 24 E de04 | Isotwin | Contrasted |
| Saunier Duval F 24 E | Isotwin | Contrasted |
| Saunier Duval F 24 EA | Isotwin | Contrasted |
| Saunier Duval F 28 EA | Isotwin | Contrasted |
| Saunier Duval F 30 E H-MOD | Isofast | Contrasted |
| Saunier Duval F 35 E H-MOD | Isofast | Contrasted |
| Saunier Duval F 25 E STL | Thema | 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. S10470 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 S10470. 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 S10470 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 is completely off, with no indicator lights on, and it does not respond to anything.
Cause: This PCB is the control center of the entire boiler: if it loses power or malfunctions, the unit will not start at all.
Check the fuse on the control board itself, if accessible, and the input voltage before replacing it.
- 02
It smells burnt or there is a dark mark next to some component of the PCB.
Cause: A voltage spike or a short circuit can damage traces or components of the control electronics.
With the boiler unplugged, visually inspect the PCB for burns before assuming a replacement is necessary.
- 03
The boiler works for several days without any issues and then suddenly gets locked, with no clear pattern.
Cause: An intermittent fault in the control board, such as a solder joint or a capacitor, causes sporadic faults that are difficult to reproduce on demand.
Keep a record of when the blockage occurs, the time, and whether it coincides with domestic hot water or heating, to see if there is a pattern.
- 04
The remote control or the control panel stops communicating with the boiler.
Cause: The PCB is the one that manages communication with the control; if that module fails, the control is left without data.
Check that the remote control has the correct power supply and that the communication cable or bus is properly connected before replacing the PCB.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F13 | Main PCB fault | Yes — it is the direct code of the PCB. Check 230 V, fuse, connectors, and grounding; if it persists, replace the PCB. |
| F11 | No signal is reaching the main circuit | Possible — first rule out wiring and connectors to the PCB; if they are fine, it is usually the PCB. |
| F12 | No signal from the user interface | Normally not — it's usually the display or its cable, not this main PCB. |
| F18 | User interface fault | Normally not — it corresponds to the panel/display, not to this 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 S10470 PCB.
- Catalogue reference
- S10470
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- 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.
- PCB reference
- S1047000
- Supply voltage
- 230V
- Barcode
- 3532041183024
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval S C 24 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.












