3 Bar Safety Valve 1 Ferroli Metallic Domicompact F30 Ref. 39809740
The Ferroli boilers from the Domicompact range use the 3 Bar 1 Ferroli Metal Safety Valve Domicompact F30, which is responsible for releasing water when the circuit pressure exceeds 3 bar. If this valve fails, you will notice continuous dripping or that it does not discharge properly when needed. It is compatible with several models, such as Domina F24, Domina F30, Domicompact F24, Domicompact F30, among others. It is recommended to replace it when it shows signs of malfunction.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 39809740
Safety valve with reference 39809740. Seven confirmed compatibilities: Domina F24 and Domina F30.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Domina F24 | Ferroli | Contrasted |
| Saunier Duval Domina F30 | Ferroli | Contrasted |
| Saunier Duval Domicompact F24 | Ferroli | Contrasted |
| Saunier Duval Domicompact F30 | Ferroli | Contrasted |
| Saunier Duval New Elite F24 | Ferroli | Contrasted |
| Saunier Duval Domitop F24 | Ferroli | Contrasted |
| Saunier Duval Domitop F30 | 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 39809740 is the correct 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 39809740. 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 safety valve 39809740 resolves.
The safety valve releases pressure when the circuit exceeds its setting. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The valve is constantly leaking water from the drain tube, even when the boiler is cold.
Cause: The internal seat does not seal completely, either due to wear or because a particle is preventing full closure.
Measure the pressure on the manometer with the boiler cold: if it exceeds approximately 1.5 bar, bleed the circuit before replacing the gas valve, as the dripping may be due to excess pressure and not the part.
- 02
After bleeding and lowering the pressure, the gas valve still won't stop dripping.
Cause: There is dirt or limescale lodged in the seat, preventing it from closing cleanly after the shot.
Actuate the bleed lever of the valve several times to remove dirt before considering it faulty.
- 03
There is a water leak right at the fitting where the gas valve is screwed in, not in the body.
Cause: The fitting of this type of gas valve has a gasket or thread that degrades over time and with the expansions of the circuit.
Tighten the fitting carefully and check if the leak is coming from the connection gasket before assuming that the valve is broken; sometimes it is enough to just replace the gasket.
- 04
The valve does not expel water when the boiler exceeds pressure.
Cause: The internal mechanism has become jammed, which is common if it hasn't been triggered for a long time.
Lift the test lever manually, if it has one, and check that it moves normally and releases some water; if it is stuck, check that it is not painted or covered on the outside.
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 safety valve 39809740
- Catalogue reference
- 39809740
- Brand
- Saunier Duval
- Type of part
- Safety valves
- Units in stock
- 7 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.
- Setpoint
- 3 bar
- Previous code (ex)
- 39400540
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Domicompact F30 Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the safety valve 39809740
For which boiler models is the 3 Bar 1 Ferroli Metal Safety Valve Domicompact F30 Ref. 39809740 compatible?
What is the reference for this safety valve?
What pressure does the safety valve have?
Are there documented fault codes for this gas valve?
Is this valve suitable for the Ferroli Domina C24?
Is there a previous spare part code for this gas valve?
Spare parts related to Saunier Duval Ferroli
