Main PCB Saunier Duval Thema NOx F24 Ref. 0020076179
The Main PCB Saunier Duval Thema NOx F24 Ref. 0020076179 is the component that controls the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, lock out, or behave erratically, displaying fault codes such as 13 or 11. This board is compatible with models from the Thema NOx, Supermaster, and Supermicra ranges, among others. It is recommended to replace it when symptoms of malfunction or errors in the system occur.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020076179
PCB with reference 0020076179. Eight confirmed compatibilities: F 24 and 24 SE.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F 24 | NOX Thema | Contrasted |
| Saunier Duval 24 SE | Supermaster | Contrasted |
| Saunier Duval 28 SE | Supermaster | Contrasted |
| Saunier Duval 30 SE | Supermaster | Contrasted |
| Saunier Duval Ecoplus 24 SE | Supermicra | Contrasted |
| Saunier Duval Master Inox 24 SE | Hermann | Contrasted |
| Saunier Duval Master Inox 30 SE | Hermann | Contrasted |
| Saunier Duval Supermicra Condensing 24 SE | Hermann | 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. 0020076179 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 0020076179. 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 0020076179 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 turn on and shows nothing on the display, even though it is receiving power.
Cause: If the power supply to the PCB does not deliver the necessary 16.5V, the electronics will not function.
Check the fuse on the PCB and, if you have a multimeter, measure the voltage at the output of the transformer before replacing it.
- 02
The remote control or the panel does not respond when pressed.
Cause: The PCB controls the communication with the remote control; if the microcontroller fails, that connection is lost.
Disconnect and reconnect the remote control cable, check that it is not damaged before considering that the PCB is broken.
- 03
The pumps or the fan do not start even though the boiler requests it.
Cause: The relay output that activates those components may not be functioning.
With the boiler in demand, measure if voltage reaches the connector that goes to the pump or the fan.
- 04
A burnt smell or darkened components are detected on the PCB.
Cause: An internal short circuit or a component damaged by overvoltage can render the electronics inoperable.
Inspect the PCB visually, with the boiler disconnected, before confirming that it needs to be replaced.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 13 | Main PCB fault. | The main PCB is faulty or has defective internal/external connections; check the fuse and voltages of the PCB (230/5 V supplies) and connectors. If the issue persists with correct wiring and peripherals, replace the PCB. |
| 11 | No reception from the main PCB (MMI line). | Communication fault towards the PCB (receiver/MMI input of the PCB) or the cable between interface and PCB; check continuity of the MMI lead and 5 V on the interface. If the fault persists with a good cable/panel, the PCB is 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 0020076179.
- Catalogue reference
- 0020076179
- 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.
- Secondary of the transformer
- 16.5V AC, 8VA
Frequently asked questions about the PCB 0020076179
Is this PCB suitable for a Saunier Duval Thema NOx F24?
What output does the transformer of the Supermaster 30 SE PCB provide?
Is this PCB suitable for a Saunier Duval Supermicra Ecoplus 24 SE?
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