Saunier Duval Isofast F28 E2 PCB - Ref. S1019000
If your boiler does not start, locks out, or exhibits erratic behavior, you may need the Saunier Duval Isofast F28 E2 PCB - Ref. S1019000. This control board is responsible for managing the ignition, burner modulation, pump, and safety features of the boiler. A fault in this component can manifest with errors such as 13, which indicates a fault in the main printed circuit, or 20, which signals a communication defect between the user interface and the main board. It is compatible with several models from the Isofast and Isomax ranges, including the C 28 E1 and the F 28 E2. It is recommended to replace it upon detecting these symptoms.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference S1019000
PCB with reference S1019000. 11 verified compatibilities: C 28 E1 and C 28 E1 NOX.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C 28 E1 | Isofast | Contrasted |
| Saunier Duval C 28 E1 NOx | Isofast | Contrasted |
| Saunier Duval C 35 E1 | Isofast | Contrasted |
| Saunier Duval F 28 E1 | Isofast | Contrasted |
| Saunier Duval F 35 E1 | Isofast | Contrasted |
| Saunier Duval C 28 E2 | Isomax | Contrasted |
| Saunier Duval C 28 E204 | Isomax | Contrasted |
| Saunier Duval C 28 E205 | Isomax | Contrasted |
| Saunier Duval F 28 E2 | Isomax | Contrasted |
| Saunier Duval F 28 E204 | Isomax | Contrasted |
| Saunier Duval F 28 E205 | Isomax | 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. S1019000 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 S1019000. 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 S1019000 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 or respond to the controls, as if it is not receiving the command.
Cause: The PCB processes the request from the thermostat and sends it to the burner; if it doesn't, the boiler won't start even if the rest is functioning well.
Check that the room thermostat is calling for heat and that the wiring to the PCB is properly connected and free of loose contacts.
- 02
The boiler is completely without power, as if it were unplugged.
Cause: The protection fuse of the PCB cuts off the power when it blows, even though the rest is functioning correctly.
Check the fuse with a multimeter before replacing the entire PCB; sometimes it is only necessary to change the fuse.
- 03
Electronic errors appear on the display that come and go without a clear pattern.
Cause: Internal faults in the PCB, such as solder joints or damaged components, generate intermittent fault codes.
Note which fault codes appear and at what point in the cycle, to see if they always coincide with the same phase.
- 04
The thermostat or the control panel stop having an effect on the boiler.
Cause: The PCB interprets the signal from the thermostat or the panel; if this communication fails, the control has no effect.
Try temporarily replacing the thermostat with another one that works well before ruling out the PCB.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 13 | Main printed circuit board fault. | The main PCB (S1019000) does not pass the internal self-diagnosis; this is usually due to an electronics/EEPROM fault or the PCB not generating its internal voltages. Check the 230 V input, fuse, and low voltages (5/15/24 V) on the PCB; if these are correct and the wiring is OK, replace the PCB. |
| 20 | Communication fault between the user interface and the main PCB. | Communication channel/ebus fault on the main board, incompatibility between interface and PCB or defective connection/harness. Check the interface power supply from the board, connectors/harness and test with a known interface; if it persists, the cause is 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 S1019000 PCB.
- Catalogue reference
- S1019000
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 2 units
- 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.
- supply voltage
- 230V
- fuse
- FUSE 125mAT 250V
- factory internal code (physical PCB)
- 060265 3 / SOK 16 51
- compatibility OEM ref. S1019000
- Saunier Duval Isofast F28E2 (and C28E1, C35E1, F35E1, Isomax C28E2/F28E2)
- The manufacturer code of the PCB is also not available; only the internal factory code 060265 3 / SOK 16 51 has been readable.
Frequently asked questions about the PCB S1019000
Is this PCB Ref. S1019000 suitable for a Saunier Duval Isofast F28 E2?
What fault of the boiler does the replacement of this PCB resolve?
What fuse does the S1019000 PCB use and what voltage does it operate at?
Does this PCB S1019000 also work for an Isomax C28E2?
Spare parts related to Saunier Duval Isomax
