PCB Saunier Duval Thema Condens F 30 E Ref. 0020018478
When you open the tap or turn on the heating, the Saunier Duval Thema Condens F 30 E PCB (control board) Ref. 0020018478 is responsible for controlling the ignition, the modulation of the burner, and the boiler pump. If it fails, you will notice that the boiler does not start, gets locked, or exhibits erratic operation. This board is compatible with models such as Thema Condens F24, F24E, and Themafast Condens F30, among others. You should replace it if you experience connection issues that are reflected in the fault codes F11, F13, or F20.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020018478
PCB with reference 0020018478. Six confirmed compatibilities: F24 and F24E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F24 | Thema Condens | Contrasted |
| Saunier Duval F24E | Thema Condens | Contrasted |
| Saunier Duval F24 | Themafast Condens | Contrasted |
| Saunier Duval F24E | Themafast Condens | Contrasted |
| Saunier Duval F30 | Themafast Condens | Contrasted |
| Saunier Duval F30E | Themafast Condens | 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. 0020018478 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 0020018478. 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 0020018478 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 condensing boiler shows no signs of life: the display is off, and there are no indicator lights.
Cause: The PCB is not receiving or distributing the electrical power correctly.
Check that power is reaching the boiler and that no power connector is loose before replacing the PCB.
- 02
It displays a fault code continuously and does not start, even if you try several times.
Cause: The PCB blocks the ignition when it detects a safety signal out of range.
In condensing boilers, check the siphon and the condensate sensor first: a blockage there can give the same fault code as a PCB fault.
- 03
The domestic hot water or heating does not start when required, as if the boiler is not receiving the command.
Cause: The PCB is not properly managing the demand signal coming from the circuit or the control.
Check that the faucet or the thermostat are really requesting service and that the minimum flow rate is reached before suspecting the PCB.
- 04
The boiler stops and starts by itself several times in a row, without a clear pattern.
Cause: An intermittent fault in the electronics interrupts the control cycle without any external cause.
Keep a record of when it occurs (cold, hot, after how long it has been running) to determine if the pattern points to the PCB or another component.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F11 | Connection fault with the user interface (no signal reaching the main PCB). | The main PCB may not receive/interpret the bus from the interface; check continuity and voltages between the interface and the PCB (wiring/eBUS/5 V). If connections and UI are correct and the issue persists, the main PCB is implicated. |
| F13 | Main PCB (control board) fault/connection. | Fault in the PCB or its connections causes loss of communication/control; check connectors and harnesses. If the wiring is fine and the error persists, replace the board (ref. 0020018478). |
| F20 | Software incompatibility (interface/main PCB or incorrect product code). | Mismatch between the interface and the main PCB or incorrect product coding locks the boiler; check compatibility and the 'product code' in parameters. If the UI is correct and the fault persists, the main PCB may be the cause. |
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 0020018478
- Catalogue reference
- 0020018478
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 2 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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.
- voltage
- 230 V
Frequently asked questions about the PCB 0020018478
Does this PCB work for the Saunier Duval Thema Condens F30 E?
Is this PCB compatible with the Saunier Duval Thema Condens F24?
Is this PCB compatible with the Saunier Duval Themafast Condens F30?
How many models are compatible with this PCB?
What fault codes are documented for this PCB?
What is the reference for this PCB?
Spare parts related to Saunier Duval Themafast Condens
