Saunier Duval Thema Condens F 25 A 1 Display PCB Ref. 0020084519
The PCB of the Thema Condens range from Saunier Duval, model PCB Display Saunier Duval Thema Condens F 25 A 1 Ref. 0020084519, is a component that controls the ignition, burner modulation, pump, and safety features of the boiler. If it malfunctions, the boiler may fail to start, lock out, or behave erratically, and the fault code F.70 may be displayed: Invalid product code (DSN). This board is compatible with several models, including the Thema Condens F25 and F25 A1, as well as the Themafast Condens F25 and F30 A1. A technician must confirm through diagnosis whether it needs to be replaced when these symptoms or fault codes are detected.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 0020084519
- Warranty
- 1 year
Saunier Duval boilers compatible with reference 0020084519
PCB with reference 0020084519. Four confirmed compatibilities: Thema Condens F25 and Thema Condens F25 A1.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Thema Condens F25 | Thema Condens | Verified |
| Saunier Duval Thema Condens F25 A1 | Thema Condens | Verified |
| Saunier Duval Themafast Condens F25 | Themafast Condens | Verified |
| Saunier Duval Themafast Condens F30 A1 | Themafast Condens | Verified |
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 reference 0020084519 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 0020084519. 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 0020084519
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 is completely off even though the boiler is working.
Cause: The display board is the one that powers and controls the display; if it fails, there will be no reading even if the main PCB is operational.
Check the flat connector between the display and the main PCB, which may be loose or have a poor connection.
- 02
The buttons on the panel are unresponsive or only partially responsive.
Cause: The push buttons are integrated into the display board, and their circuit translates the press into a command.
Clean the contacts of the buttons before replacing the PCB; dirt and condensation are common causes.
- 03
The boiler heats up but the temperature cannot be adjusted nor can the fault code be seen.
Cause: If the display board is not working, the user interface is lost even though the rest of the system continues to function.
Turn off and turn on the boiler and check if any LED lights up or if there is any blinking on the screen to identify the fault.
- 04
The display flickers or remains with fixed segments that make no sense.
Cause: A fault in the screen electronics causes incorrect refreshes of the segments or icons.
Check that the flat cable is not bent and does not have oxidized pins before considering the PCB as faulty.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F.70 | Invalid product code (DSN) | When replacing the Display PCB (often together with the main board) without recoding the appliance, the electronics detect an invalid DSN. Verify by entering d.93 to adjust the product code and check the coding resistor and that the display is the compatible model. |
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 0020084519
- Catalogue reference
- 0020084519
- Uniclima internal SKU
- DCTF25A1
- 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 Thema Condens F25 Manual (PDF) Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 0020084519
Is this PCB Saunier Duval Thema Condens F 25 A 1 Ref. 0020084519 compatible with the Thema Condens F25?
Is this PCB suitable for the Thema Condens F25 A1?
Can I use this PCB in the Themafast Condens F25?
What fault codes are documented for this PCB?
How many models are compatible with this PCB?
What is the reference for this PCB?
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