Flow meter Saunier Duval Isofast C 35 E1 Ref. S5720200

Flow meter Saunier Duval Isofast C 35 E1 Ref. S5720200

Hall-type flow meter or flow sensor, black plastic part with green electrical connector, for Saunier Duval Isofast boilers and compatible models from the Vaillant group. It detects the flow of water to activate the ignition and the production of domestic hot water. Replacement requires first confirming the fault of the part through technical diagnosis, even when the boiler does not detect flow or does not heat the domestic hot water. The code engraved on the part (0001035190000) corresponds to the commercial reference S5720200.

Type of part
Flow detectors
Catalogue reference
S5720200
Warranty
1 year
VAT included Stock · 7 units
Compatibility

Saunier Duval boilers compatible with reference S5720200

Flow meter with reference S5720200. 33 confirmed compatibilities: ThemaClassic C24E and ThemaClassic C25E.

Verified compatibility

Boiler modelFamilyVerification
Saunier Duval ThemaClassic C24EThemaClassicVerified
Saunier Duval ThemaClassic C25EThemaClassicVerified
Saunier Duval ThemaClassic F24EThemaClassicVerified
Saunier Duval ThemaClassic F25EThemaClassicVerified
Saunier Duval Themafast C24EThemafastVerified
Saunier Duval Themafast C25EThemafastVerified
Saunier Duval Themafast C28EThemafastVerified
Saunier Duval Themafast Condens F24EThemafastVerified
Saunier Duval Themafast Condens F25ThemafastVerified
Saunier Duval Thematek C24EThematekVerified
Saunier Duval Thematek F24EThematekVerified
Saunier Duval Thematek S C24EThematekVerified
Saunier Duval Thematek S F24EThematekVerified
Saunier Duval Isofast C28EIsofastVerified
Saunier Duval Isofast C35EIsofastVerified
Saunier Duval Isofast F28EIsofastVerified
Saunier Duval Isofast Condens F30EIsofastVerified
Saunier Duval Isofast Condens F35EIsofastVerified
Saunier Duval Isomax C28EIsomaxVerified
Saunier Duval Isomax F28EIsomaxVerified
Saunier Duval Isomax Condens F35EIsomaxVerified
Saunier Duval Isotwin C24EAIsotwinVerified
Saunier Duval Isotwin C28EAIsotwinVerified
Saunier Duval Isotwin F24EIsotwinVerified
Saunier Duval Isotwin F28EAIsotwinVerified
Saunier Duval Opalia C16EOpaliaVerified
Saunier Duval Opalia F11EOpaliaVerified
Saunier Duval Opalia F14EOpaliaVerified
Saunier Duval Opalia F17EOpaliaVerified
Saunier Duval Thema NOx F25Thema Nox / Thema CondensVerified
Saunier Duval Thema Condens F24EThema Nox / Thema CondensVerified
Saunier Duval Thema Condens F25Thema Nox / Thema CondensVerified
Saunier Duval Semia F24SemiaVerified

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if ref. S5720200 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 S5720200. 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.
Diagnosis and fault codes

Symptoms that require diagnosis in the flow meter S5720200

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

    The boiler does not ignite to provide hot water, but it works well for heating.

    Cause: The flow meter does not send the rotation signal, so the PCB does not detect the demand for domestic hot water and the burner does not start.

    Open the tap to the maximum for a moment: if the boiler ignites, the problem may be insufficient flow, not the sensor.

  • 02

    The hot water is interrupted while you shower or wash dishes.

    Cause: The turbine may temporarily lose traction due to scale or debris, causing the sensor to send irregular pulses.

    Check the cold water inlet filter of the boiler: if it is dirty, it can reduce the flow rate and cause interruptions in the domestic hot water.

  • 03

    A fault code related to the flow sensor or flow meter appears on the screen.

    Cause: The electronics detect an unexpected signal from the sensor and display that specific warning.

    Note the exact code that appears on the display: it will help you confirm in the manual whether it refers to the sensor or another cause before purchasing 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.

Technical data

Data sheet for the Saunier Duval S5720200 flow meter

Catalogue reference
S5720200
Uniclima internal SKU
CIC35E1
Brand
Saunier Duval
Type of part
Flow detectors
Units in stock
7 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.

Code engraved on the part
0001035190000
Documentation

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

Frequently asked questions

Frequently asked questions about the flow meter S5720200

Is this flow meter suitable for the Isofast F 28 E1?
Yes, it is on the list of compatible boilers for this part.
Does this flow meter work for the Isomax C 28 E?
Yes, it is on the list of compatible boilers for this part.
Why does the flow meter of the Isofast C 35 E1 break down?
It usually fails due to wear or dirt, causing the boiler not to detect flow and not to produce domestic hot water.
What type of sensor is this flow meter from the Isofast C 35 E1?
It is a Hall-type flow sensor, made of black plastic with a green electrical connector.

Spare parts related to Saunier Duval Themafast

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Flow meter Saunier Duval Isofast C 35 E1 Ref. S5720200