Saunier Duval Isofast Condens F 30-35 E Display Interface Module Ref. S1072300
Saunier Duval Isofast Condens features the display interface module that manages the ignition, burner modulation, pump, and safety mechanisms of the boiler. When this PCB fails, the boiler may not start, become locked, or operate erratically. The user may notice issues such as fault codes F12, F18, or F13. This module is compatible with the Isofast Condens F 30 E and F 35 E models, as well as with other models from the Isofast and Isomax ranges. A technician must confirm through diagnosis whether it is necessary to replace the spare part upon detecting any of these symptoms.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- S1072300
- Warranty
- 1 year
Saunier 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
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- 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 that require diagnosis on the PCB S1072300
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 does not display any information, screen completely black.
Cause: If the module's electronics fail, nothing is displayed on the screen even though the boiler is functioning.
Check if the boiler has power and if other indicators or sounds from the main PCB are active before replacing the module.
- 02
The panel does not respond to any buttons and does not allow control of the boiler from there.
Cause: A fault in the electronics of the module prevents communication with the user, leaving the panel unresponsive.
Check that the connector between this module and the main PCB is properly fitted and free of corrosion before replacing it.
- 03
The boiler seems to be working (you can hear it or it provides service) but the panel remains silent, with no lights or messages.
Cause: The ignition control may be on the main PCB, and this module only displays and receives commands from the user.
Confirm if the boiler really provides heating or domestic hot water without intervention from the panel; if so, the problem lies in this module.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| 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
- Uniclima internal SKU
- DMISC28EA
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 4 units
- 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 display interface module suitable for an Isofast Condens F 35E?
Is this module also suitable for the Isomax Condens F 35 E?
When should this interface module be replaced in an Isofast F 30 E H-MOD?
Spare parts related to Saunier Duval Isofast
