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

Verify the reference 8737602851 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Junkers (Bosch Thermotechnology) 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.

RefurbishedJunkers Flow Detectors

Flow Sensor Turbine Junkers Ceraclass Excellence ZWC 35 3 MFA Ref. 8737602851

30 €VAT includedIn stock · 5 units

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 Ceraclass Excellence ZWC 24-3 MFA/MFK, Ceraclass Excellence ZWC 28-3 MFA/MFK, Ceraclass Excellence ZWC 35/35-3 MFA (ref. 8737602851). 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: 8737602851
Brand: Junkers
Type of part: Flow Detectors
Available units: 5 units in stock
Status: Refurbished
Warranty: 1 year
Shipping: 2–4 working days (EU)
Return: 14 days

The same part (ref. 8737602851) equips these models. Verified compatibility; check the reference before purchasing.

Junkers

Ceraclass Excellence ZWC 24-3 MFA/MFK
Ceraclass Excellence ZWC 28-3 MFA/MFK
Ceraclass Excellence ZWC 35/35-3 MFA
Ceraclass Excellence ZSC 24-3 MFA
Cerapur Smart ZWB 28-3 C/CE
Cerapur HM

Bosch

Condens 7000 (GC7000i W)

How do I know if this flow meter / flow detector is the one for my boiler?: Verify the reference 8737602851 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Junkers (Bosch Thermotechnology) 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.

Flow Sensor Turbine Junkers Ceraclass Excellence ZWC 35 3 MFA Ref. 8737602851

Key Data

Junkers

Bosch

Spare Parts Related Boiler Ceraclass Excellence ZWC 35 3 MFA