Saunier Duval Isofast Condens F 30 E Display Module Ref. S1072300
The control PCB of the Saunier Duval Isofast Condens F 30 E display module manages the ignition, burner modulation, pump, and safety features of the boiler. If it fails, the boiler may not start, become locked, or exhibit erratic behavior. You may experience faults such as F12: No signal from the user interface, F18: User interface failure, or F13: Main printed circuit board failure. This module is compatible with models such as Isofast Condens F 30 E, F 35 E, as well as others from the Isofast and Isomax ranges. It should be replaced when these symptoms or faults occur.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference S1072300
PCB with reference S1072300. Seven confirmed compatibilities: F 30 E and F 35 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F 30 E | Isofast Condens | Contrasted |
| Saunier Duval F 35 E | Isofast Condens | Contrasted |
| Saunier Duval F 30 E H-MOD | Isofast | Contrasted |
| Saunier Duval F 35 E H-MOD | Isofast | Contrasted |
| Saunier Duval F 35 EA | Isofast | Contrasted |
| Saunier Duval F 35 E | Isomax | Contrasted |
| Saunier Duval Condens F 35 E | Isomax | 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. S1072300 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 S1072300. 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 S1072300 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 control panel screen is off, but the boiler is still operating.
Cause: The display module may fail, but the boiler continues to control combustion from the main PCB.
Check if power is reaching the module by ensuring that the connector with the rest of the boiler is properly fitted before replacing it.
- 02
The panel lights up for a moment and then turns off, or it blinks.
Cause: This usually indicates a poor connection in the connector between the display module and the main PCB.
Turn off the power, disconnect and reconnect the module connector, and check that the cable is not pinched or bent.
- 03
The buttons on the panel are unresponsive, although the screen looks fine.
Cause: The keyboard and the screen are part of the same module; if the button area fails, it will not register the press.
Clean the surface of the buttons and check that there is no moisture or condensation on the front of the panel before considering it faulty.
- 04
It is not possible to read any fault code or adjust the temperature from the remote control.
Cause: If the display is not working, the boiler cannot communicate with the user, even if the rest of the electronics are functioning properly.
If you have an external thermostat or a connected app, check if the status or error is visible from there; this helps to identify the fault in this module.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F12 | No signal from the user interface | Yes — it points to this display/interface module or its connection cable with the main PCB. |
| F18 | User interface fault | Yes — it corresponds to this display/control board module. |
| F13 | Main PCB fault | No — that code is for the MAIN PCB (a different part), not for this display. |
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 S1072300 PCB.
- Catalogue reference
- S1072300
- 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 F 35 E H-MOD Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB S1072300
Is this red display module compatible with the Isofast Condens F 30 E range?
Can I use this module in the Isofast F 35 E H-MOD?
Which boiler models are compatible with this module?
What fault codes are relevant for this module?
What is the difference between this red screen module and the DMISC28EA green board module?
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