How do I know if this flow meter / flow detector is the one for my boiler?

Verify the reference 39820450 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is an Eltek piece.

The flow meter/flow detector detects the passage of water to activate the domestic hot water (DHW).

Does not provide hot water when the tap is opened even though there is flow?

The flow meter turbine does not detect water flow.

Which models is it suitable for?

Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.

Installation and recommendations

Check the turbine and ensure it is not blocked by limescale.

What does refurbished mean and what coverage does it have?

Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

RefurbishedFerroli Flow Detectors

Flow meter Cointra Ferroli Divatop Low NOx F 24 Ref. 39820450

Name: Flow meter Cointra Ferroli Divatop Low NOx F 24 Ref. 39820450
Brand: Ferroli
SKU: FDLNOXF24
Price: 10 EUR
Availability: InStock

10 €VAT includedIn stock · 1 unit

Flow meter: refurbished spare part that detects water flow to activate domestic hot water. Useful if no hot water comes out when the tap is opened despite there being flow. Compatible with Divatop Low NOx F24, Divatop Low NOx F32, Divatop F24 (ref. 39820450). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: 39820450
Brand: Ferroli
Type of part: Flow Detectors
Available units: 1 unit in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 39820450) equips these models. Verified compatibility; check the reference before purchasing.

Divatop Low NOx

Divatop Low NOx F24
Divatop Low NOx F32

Divatop

Divatop F24
Divatop C24
Divatop C32
Divatop F32
Divatop F37

Divatop Micro

Divatop Micro F24
Divatop Micro F32

Ferdigit

Ferdigit F24
Ferdigit Micro F24

Econcept Tech

Econcept Tech 25C
Econcept Tech 35C

Optimax HE

Optimax HE 31C
Optimax HE 38C

How do I know if this flow meter / flow detector is the one for my boiler?: Verify the reference 39820450 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is an Eltek piece.
What is it used for?: The flow meter/flow detector detects the passage of water to activate the domestic hot water (DHW).
Does not provide hot water when the tap is opened even though there is flow?: The flow meter turbine does not detect water flow.
Which models is it suitable for?: Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations: Check the turbine and ensure it is not blocked by limescale.
What does refurbished mean and what coverage does it have?: Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.