Saunier Duval ThemaFast Condens F30 E Display Ref. 0020070407
When you open the tap or start the heating, the Saunier Duval ThemaFast Condens F30 E display is responsible for controlling the ignition, the modulation of the burner, the pump, and the safety features of the boiler. If this component fails, you will notice that the boiler does not start, gets locked, or exhibits erratic behavior. Additionally, fault codes such as F.70, F.18, F.363, or F.707 may appear. This display is compatible with the Themafast Condens range of boilers, including the F30 and F30 E models, among others. It should be replaced when you experience these symptoms or related faults.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020018473
PCB with reference 0020018473. Four confirmed compatibilities: F30 and F30 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F30 | Themafast Condens | Contrasted |
| Saunier Duval F30 E | Themafast Condens | Contrasted |
| Saunier Duval F30 | Thema Plus Condens / Themacondens | Contrasted |
| Saunier Duval F30 E | Thema Plus Condens / Themacondens | 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. 0020018473 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 0020018473. 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 0020018473 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 screen does not turn on or remains completely black.
Cause: The display has lost power, or the connector with the main PCB is loose or oxidized.
Disconnect and reconnect the cable that connects the display to the PCB before considering the part as faulty.
- 02
The 4 buttons on the screen do not respond when pressed.
Cause: The push-button circuit integrated into the module degrades with years of daily use.
Test the four buttons one by one: if none of them respond, the fault is more likely in the entire module than in an individual button.
- 03
The fault code given by the boiler cannot be read, even though it is stopped.
Cause: Without a display, there is no way to check the fault codes stored in the main PCB.
Look for an LED or sequence of flashes on the main PCB itself as an alternative to identify the error while confirming the screen fault.
- 04
The display shows lines, incomplete letters, or missing segments.
Cause: It is typical wear of the LCD panel, different from a total shutdown due to lack of power.
Photograph what the screen displays in that state: it helps differentiate an LCD fault from a simple blinking fault code.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.70 | Invalid product code (DSN) / appliance coding defect. | This occurs when both the display (user interface) and the main PCB are replaced simultaneously and the appliance reference is not reprogrammed. Check by entering the service menu (e.g., d.93) and adjusting the product code according to the data plate. |
| F.18 | User interface fault (display). | The display electronics are faulty and do not communicate or respond correctly. Check the power supply and bus to the interface, and if possible, test with a known good replacement display. |
| F.363 | Display EEPROM: read/write test error. | The internal memory of the display detects corruption or a fault in its R/W test. Check if the error appears after update/start-up and replace the display if it persists. |
| F.707 | It is not possible to establish communication between the display and the PCB. | eBUS communication fault between the display and the main PCB due to defective display/cable/connectors. Check continuity of the harness between the screen and PCB, polarity, and condition of connectors; test with another cable or 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 PCB 0020018473
- Catalogue reference
- 0020018473
- 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.
- Code on PCB
- 0020070407
- Internal model
- Basic_1 P2 AI
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Thema Plus Condens / Themacondens F30 Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 0020018473
Does this screen fit the Saunier Duval ThemaFast Condens F30?
Does this screen fit the Saunier Duval ThemaFast Condens F30 E?
Does this screen include the boiler control buttons?
How many models are compatible with this display?
What fault codes are documented for this display?
Spare parts related to Saunier Duval Themafast Condens
