Saunier Duval Opalia TF 11 E PCB - Thai Lin
If your Saunier Duval Opalia TF 11 E boiler does not start or shuts down during operation, you may need the control PCB. This part is responsible for managing the ignition, burner modulation, pump, and safety features of the boiler. When it fails, you may notice that the boiler does not start, locks out, or behaves erratically. It is compatible with the Opalia TF 11 E and Opalia TF 14 E models, among others. It should be replaced when these malfunction symptoms occur.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020049969
PCB with reference 0020049969. Two confirmed compatibilities: Opalia TF 11 E and Opalia TF 14 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Opalia TF 11 E | Opalia TF | Contrasted |
| Saunier Duval Opalia TF 14 E | Opalia TF | 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. 0020049969 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 0020049969. If it is not visible, do not identify the part by 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 0020049969 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 boiler does not ignite, there are no lights or display when trying to turn it on.
Cause: The power supply module of the PCB does not provide the necessary current to the control circuit.
With the boiler plugged in, measure with the multimeter if 230V is reaching the input of the module before considering that the PCB is faulty.
- 02
The display lights up dimly or flickers for no apparent reason.
Cause: The power module sends an unstable current and the control circuit does not function properly.
Check if the flickering worsens when connecting other devices on the same electrical line; sometimes the problem lies in the installation, not in the PCB.
- 03
The boiler restarts by itself from time to time, as if it had briefly disconnected.
Cause: A momentary drop in the PCB power supply resets the control circuit.
Check the plug and the power cable of the boiler before considering a fault in the internal module of the PCB.
- 04
The boiler does not respond to the commands from the remote control or to the buttons on the boiler itself.
Cause: Without the power supplied by the control board module, the microprocessor that manages the buttons cannot start.
Check that the input fuse of the PCB is not blown before replacing the entire board.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F1 | The appliance does not start or shuts off during operation. | Fault in the ignition PCB: the ignition circuit does not generate/manage the spark or the ionisation signal, or it does not control the servo valve, preventing flame establishment. Verification: check wiring and measure outputs from the PCB to the transformer/electrode and gas valve; if there is no signal and the rest of the components are correct, replace the PCB. |
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 0020049969.
- Catalogue reference
- 0020049969
- 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.
- Component manufacturer
- Thai Lin
- Input voltage and current
- 230V~, 1.5mA, 50/60Hz
- Output voltage and current
- 8V~ / 0.55A (pins 7-0-)
- Maximum ambient temperature
- 70°C
- Marked
- CE
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Opalia TF 11 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 0020049969
Does this PCB for the Opalia TF 11 E also work for the Opalia TF 14 E?
Which brand manufactures the module that this PCB of the Opalia TF 11 E uses?
What output voltage does the Thai Lin module of this PCB have?
Spare parts related to Saunier Duval Opalia TF
