
Automatic Filling Valve Ferroli Domina Igloo F 24 E Ref. 39809780
If you cannot fill the heating circuit or notice that water is continuously leaking, you may need the Ferroli Domina Igloo F 24 E automatic filling key. This part allows you to replenish water to the heating circuit and recover the necessary pressure for its operation. In case of a fault, the boiler may experience pressure issues that affect its performance. It is compatible with several Ferroli models, such as Domina Insert F 24 E, Ferella Box F 24 MEL, and New Elite C 30 E, among others. It is recommended to replace it when it shows leaks or does not fulfill its filling function.
VAT included
Consult via WhatsAppFerroli boilers compatible with reference 39809780
Filling key with reference 39809780. 15 verified compatibilities: Domina Igloo F 24 E and Domina Insert F 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Domina Igloo F 24 E | Ferroli | Contrasted |
| Ferroli Domina Insert F 24 E | Ferroli | Contrasted |
| Ferroli Domina Insert F 30 E | Ferroli | Contrasted |
| Ferroli Ferella Box F 24 MEL | Ferroli | Contrasted |
| Ferroli Ferella Box F 30 MEL | Ferroli | Contrasted |
| Ferroli Ferella Free F 24 MEL | Ferroli | Contrasted |
| Ferroli Ferstyle C 24 MEL | Ferroli | Contrasted |
| Ferroli Ferstyle C 30 MEL | Ferroli | Contrasted |
| Ferroli Ferstyle F 24 MEL | Ferroli | Contrasted |
| Ferroli Ferstyle F 30 MEL | Ferroli | Contrasted |
| Ferroli New Elite C 24 E | Ferroli | Contrasted |
| Ferroli New Elite C 30 E | Ferroli | Contrasted |
| Ferroli New Elite F 24 | Ferroli | Contrasted |
| Ferroli New Elite F 24 E | Ferroli | Contrasted |
| Ferroli New Elite F 30 E | Ferroli | 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 the part number 39809780 is the one 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 39809780. 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 39809780 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
The pressure in the circuit keeps rising on its own, and the radiators need to be bled after refilling the system.
Cause: The filling valve does not close properly and continues to let water into the circuit.
Make sure the shut-off valve is properly closed after each filling.
- 02
Water is continuously dripping even though the lever is in the closed position.
Cause: The internal shutter is worn and does not seal properly.
Close it properly, dry the body, and check if the dripping reappears before replacing it.
- 03
The key does not move when trying to turn it, it seems stuck.
Cause: The accumulated scale in the internal mechanism may be causing the blockage, especially in rarely used taps.
Try to move it carefully in both directions with the boiler cold before forcing it or replacing it.
- 04
Lime or moisture is observed around the thread where the mains water enters.
Cause: The problem may be with the gasket of that connection and not with the valve itself.
Check and tighten that connection, and see if the moisture disappears before replacing the entire valve.
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.
Ferroli filling key data sheet 39809780
- Catalogue reference
- 39809780
- Brand
- Ferroli
- Type of part
- Filling valves
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ferroli Domina Igloo F 24 E Manual (PDF)Document © Ferroli, provided as a technical reference.











