Saunier Duval Themafast Condens F 24 Display Ref. 0020018473
The Saunier Duval Themafast Condens F 24 display is a control PCB that manages the ignition, burner modulation, pump, and safety features of the boiler. When faults occur, the boiler may fail to start, lock out, or operate erratically, displaying errors such as F.70, F.18, F.363, or F.707. This part is compatible with models from the Themafast Condens range such as the F30 and F30 E, as well as the Thema Plus Condens and Themacondens ranges. It is recommended to replace it when these symptoms or errors in operation are detected.
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, it appears blank or with stripes.
Cause: The connection in the flat connector that links the display to the PCB has been lost, or the LCD panel itself has failed.
Check that the flat cable of the display is properly inserted and without bent pins before replacing the screen.
- 02
The buttons on the panel do not respond when pressed.
Cause: The touch membrane of the display has worn out and the button no longer makes contact when pressed.
Cut the power to the boiler for 30 seconds and then turn it back on; if it still does not respond after the reset, the fault is in the screen itself.
- 03
The parameters cannot be checked or adjusted from the display, but the boiler continues to heat normally.
Cause: The display is just the user interface; if the boiler is working, the fault is in the panel and not in the power PCB.
Check if any indicator or LED on the boiler is still flashing normally, indicating that the power electronics are functioning and the problem is only with the display.
- 04
The screen remains fixed displaying a value or a code that does not change even after the issue is resolved.
Cause: The display has frozen, showing the last received data because it has lost communication with the PCB.
Cut off the main power to the boiler for a full minute and then reconnect it; if the reading remains the same, the fault is with the display.
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
- 5 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 Thema Plus Condens / Themacondens F30 Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 0020018473
Does this ThemaFast Condens F24 screen have buttons?
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