Flow switch Cointra Ferroli Exclusive MIX 26 Ref. 39820450

Ferroli boilers compatible with reference 39820450

Flow meter with reference 39820450. 15 verified compatibilities: Divatop Low NOx F24 and Divatop Low NOx F32.

Verified compatibility

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. 39820450 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 39820450. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. 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 39820450

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

  You turn on the hot water tap and the boiler does not ignite the burner to heat it.

  Cause: The flow switch does not detect the rotation of the paddle wheel and does not send the start signal in DHW mode to the control board.

  Check the mains pressure and make sure that the cold water inlet filter is not clogged with limescale before considering the part faulty.

• 02

  The water comes out hot for a moment and then cools down, as if the burner turns off by itself.

  Cause: The paddle wheel rotates with friction due to lime or dirt and sends an intermittent signal to the circuit.

  Remove the flow switch and manually check that the wheel turns smoothly and without rubbing before replacing it.

• 03

  The domestic hot water is not heating even though the boiler is working well for heating.

  Cause: It is an isolated fault in the domestic hot water circuit because this flow switch only monitors that flow, not the heating one.

  Check that the problem does not come from the mixer or the plate heat exchanger before replacing the flow switch.

• 04

  When opening several taps at the same time, does the hot water take longer or not arrive?

  Cause: With low flow, the wheel may not reach the minimum rotation required by the sensor to activate the burner.

  Try opening a single tap at high flow and check if that makes it ignite.

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 39820450 flow meter datasheet

Catalogue reference

39820450

Uniclima internal SKU

FCMIX26

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