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

Verify the reference 125843538 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.

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.

RefurbishedBaxi Flow Detectors

Flow Sensor Detector Baxi Roca Nova NOx 24 24 F Ref. 125843538

Name: Flow Sensor Detector Baxi Roca Nova NOX 24 24 F Ref. 125843538
Brand: Baxi
SKU: SDCBNN24F
Price: 15 EUR
Availability: InStock

15 €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 NOVAMAX 25/25 F, NOVAMAX 31/31 F, NOVANOX 24/24 F (ref. 125843538). 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: 125843538
Brand: Baxi
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. 125843538) equips these models. Verified compatibility; check the reference before purchasing.

NOVAMAX

NOVAMAX 25/25 F
NOVAMAX 31/31 F

NOVANOX

NOVANOX 24/24 F
NOVANOX 28/28 F

PLATINUM MAX PLUS

PLATINUM MAX PLUS 24/24 F
PLATINUM MAX PLUS 28/28 F
PLATINUM MAX PLUS 33/33 F
PLATINUM MAX PLUS 40/40 F

PLATINUM COMPACT

PLATINUM COMPACT 24/24 F
PLATINUM COMPACT 26/26 F
PLATINUM COMPACT 28/28 F
PLATINUM COMPACT 30/30 F

PLATINUM ALUX

PLATINUM ALUX 24/24 F
PLATINUM ALUX 33/33 F

How do I know if this flow meter / flow detector is the one for my boiler?: Verify the reference 125843538 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
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.