Saunier Duval Themafast F 24 E Control Module Ref. S1017200
In the Saunier Duval Themafast range boilers, the Themafast F 24 E Control Module is the PCB that regulates the ignition, burner modulation, pump, and safety features of the boiler. If this part fails, the boiler may not start, may lock out, or may exhibit erratic operation. It can display fault codes such as F13, F11, F12, or F18. This module is compatible with models such as Themafast C 24 E and Themafast F 24 E, among others. It should be replaced when you experience these symptoms or errors.
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Consult via WhatsAppSaunier Duval boilers compatible with reference S1017200
PCB with reference S1017200. Two confirmed compatibilities: Themafast C 24 E and Themafast F 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Themafast C 24 E | Themafast | Contrasted |
| Saunier Duval Themafast F 24 E | Themafast | 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 the part S1017200 is the one 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 S1017200. 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 S1017200 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 manual/reset button does nothing when pressed after a boiler lockout.
Cause: The membrane of that button wears out or loses contact and does not transmit the reset command.
Check if the other keys respond to narrow down the fault to that key before replacing the entire module.
- 02
The screen does not turn on even with the boiler powered.
Cause: The module is not receiving power from the main PCB due to a connection fault.
Check the connector and the wiring between the module and the main PCB before replacing the part.
- 03
The + and - icons do not change the temperature no matter how much they are pressed.
Cause: The touch keyboard loses sensitivity with use, humidity, or accumulated dirt.
Clean the area around the keys and test with a dry finger before declaring the part faulty.
- 04
The screen lights up for a moment when powered on and then turns off by itself.
Cause: An internal or power supply fault causes the module not to stay on.
Note if the blackout coincides with any noise or spark from the main PCB, and check it before focusing the fault solely on the module.
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 S1017200 PCB.
- Catalogue reference
- S1017200
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Themafast C 24 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB S1017200
Does this control module with display, ref. S1017200, work for the Saunier Duval Themafast F 24 E?
Which boiler models are compatible with the control module ref. S1017200?
What keys does the control module with screen ref. S1017200 have?
What are the documented fault codes for this control module?
What is the reference for the control module compatible with Themafast boilers?
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