Caleffi Flow Switch for Domina, Domitop, Econcept 25C, Econcept 35C, and New Elite Boilers
Flow switch (flow detector) with a visible micro switch on the head, which detects the flow of water in the circuit and sends the signal to ignite the burner. The brass body is embossed with the Caleffi brand, the actual manufacturer of the part, and an arrow indicating the direction of flow. The replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler does not recognize water circulation and does not ignite.
- Type of part
- Flow detectors
- Status
- Refurbished
- Catalogue reference
- I39805910
- Warranty
- 1 year
Ferroli boilers compatible with reference I39805910
Flow meter with reference I39805910. 18 verified compatibilities: Domina Igloo F 24 E and Domina F24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Domina Igloo F 24 E | Domina | Contrasted |
| Ferroli Domina F24 E | Domina | Contrasted |
| Ferroli Domina F30 E | Domina | Contrasted |
| Ferroli Domina C30 E | Domina | Contrasted |
| Ferroli Domina Insert F24 E | Domina | Contrasted |
| Ferroli Domitop C24 E | Domitop | Contrasted |
| Ferroli Domitop C30 E | Domitop | Contrasted |
| Ferroli Domitop F24 E | Domitop | Contrasted |
| Ferroli Domitop F30 E | Domitop | Contrasted |
| Ferroli Econcept 25C | Econcept | Contrasted |
| Ferroli Econcept 35C | Econcept | Contrasted |
| Ferroli Econcept Tech 25C | Econcept | Contrasted |
| Ferroli Econcept Tech 35C | Econcept | Contrasted |
| Ferroli Ferella Gold | Ferella | Contrasted |
| Ferroli Ferstyle F30 | Ferstyle | Contrasted |
| Ferroli Ferstyle C30 | Ferstyle | Contrasted |
| Ferroli New Elite C30 E | New Elite | Contrasted |
| Ferroli New Elite F30 E | New Elite | 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 reference I39805910 is the part for your boiler.
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference I39805910. 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 that require diagnosis in the flow meter I39805910
The flow meter detects the passage of water to activate the domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
When opening a hot water tap, the boiler does not start and a low flow warning appears on the display.
Cause: The micro switch of the flow switch does not close the contact even though the water is circulating.
Check the cold water inlet pressure on the installation's manometer; with low pressure, the flow switch may not activate even if it is not faulty.
- 02
The water comes out hot for a moment and then suddenly cools down with the tap open.
Cause: The contact opens and closes intermittently due to wear of the spring or scale deposits in the brass body.
Disassemble the body and check if the internal passage has scale or dirt; a cleaning sometimes resolves the fault without changing the part.
- 03
The boiler ignites the burner for a moment without any tap being opened.
Cause: The micro switch gets stuck in the flow position and misleads the control board.
Shut off all the water in the house and check if the burner stops; if it doesn't stop, confirm the fault in the pressure switch before ordering it.
- 04
The low flow warning only appears during peak consumption hours in the building, for example in the morning.
Cause: The flow switch requires a minimum flow rate to move the internal paddle, and with low network pressure, it does not activate it.
Note the time of the fault; if it always coincides with peak consumption hours, the cause may be related to pressure and not to the part.
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.
Flow meter data sheet Ferroli I39805910
- Catalogue reference
- I39805910
- Uniclima internal SKU
- FCCIF24E
- Brand
- Ferroli
- Type of part
- Flow detectors
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Thread
- 1/2 inch
- Manufacturer
- Caleffi
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.
Frequently asked questions about the flow meter I39805910
Who manufactures the pressure switch for the Econcept 25C boiler?
What fault does this Caleffi pressure switch solve in the Domina or Domitop?
What thread does the Caleffi pressure switch of the New Elite have?
Does the Caleffi flow switch have the code I39805910 printed on its body?
Does this Caleffi pressure switch also work for the Econcept 35C?
