
Filling Key Saunier Duval ThemaClassic F 25 E - Ref. S1007000
When you open the filling valve of your boiler, like the Saunier Duval ThemaClassic F 25 E - Ref. S1007000, you are allowing water to replenish the heating circuit to maintain the proper pressure. If this part fails, you may notice that you cannot refill the circuit or that water is continuously leaking, causing a pressure increase. This valve is compatible with several models, including those from the ThemaClassic range such as the C24E, C25E, F24E, and F25E. It should be replaced when it shows leaks or does not function properly when trying to refill the system.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference S1007000
Filling key with reference S1007000. 23 verified compatibilities: C24E and C25E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C24E | ThemaClassic | Contrasted |
| Saunier Duval C25E | ThemaClassic | Contrasted |
| Saunier Duval F24E | ThemaClassic | Contrasted |
| Saunier Duval F25E | ThemaClassic | Contrasted |
| Saunier Duval C24E | Themafast | Contrasted |
| Saunier Duval C25E | Themafast | Contrasted |
| Saunier Duval C28E | Themafast | Contrasted |
| Saunier Duval F24E | Themafast | Contrasted |
| Saunier Duval F25E | Themafast | Contrasted |
| Saunier Duval F30E | Themafast | Contrasted |
| Saunier Duval C24E | Thematek | Contrasted |
| Saunier Duval F24E | Thematek | Contrasted |
| Saunier Duval F24E | Thema | Contrasted |
| Saunier Duval F25E | Thema | Contrasted |
| Saunier Duval THEMA24ECE | Thema | Contrasted |
| Saunier Duval THEMA24EFE | Thema | Contrasted |
| Saunier Duval C24 | SemiaTek / Semia Condens | Contrasted |
| Saunier Duval F24 | SemiaTek / Semia Condens | Contrasted |
| Saunier Duval F25 Condens | SemiaTek / Semia Condens | Contrasted |
| Saunier Duval Isofast F30E | Isofast / Isomax / Isotwin Condens | Contrasted |
| Saunier Duval Isofast F35E | Isofast / Isomax / Isotwin Condens | Contrasted |
| Saunier Duval Isomax F35 | Isofast / Isomax / Isotwin Condens | Contrasted |
| Saunier Duval Isotwin F30 | Isofast / Isomax / Isotwin 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. S1007000 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 S1007000. 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 filling valve S1007000 resolves.
The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
I can't regain pressure in the heating circuit even though I open the valve.
Cause: If the internal passage of the valve is blocked or the mechanism does not open completely, the mains water does not reach the circuit.
Check that there is available mains water pressure at the boiler inlet and that the main shut-off valve of the house is open.
- 02
Water is coming out of the body of the tap, not from the surrounding pipes.
Cause: The wear of the internal sealing gaskets causes water to leak through the body of the part itself.
Dry the area and locate the exact point of the drip: if it originates close to the body of the valve and not at a nearby thread, it points to the valve itself.
- 03
I close the valve and after a while it keeps dripping little by little.
Cause: A worn closing mechanism does not seal completely, even though it may feel properly closed to the touch.
Mark the exact closing position of the control with a marker and check after a while if it has turned by itself or if it remains the same with dripping.
- 04
When opening the valve to refill, a weak or irregular flow is noticeable.
Cause: A partially obstructed internal mechanism allows less flow than normal, even though the valve opens without apparent issue.
Compare the flow rate with what you remember from previous times and check that the main shut-off valve of the installation is fully open.
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 filling key Saunier Duval S1007000
- Catalogue reference
- S1007000
- Brand
- Saunier Duval
- Type of part
- Filling valves
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- 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 ThemaClassic F25E Manual (PDF)Document © Saunier Duval, provided as a technical reference.












