Flow meter Saunier Duval Isofast Condens F 35 E Ref. S5720200

Saunier Duval boilers compatible with reference S5720200

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

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. 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.

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 heats the radiators well, but the domestic hot water does not reach or is lukewarm.

  Cause: The sensor does not send the flow signal to the control board, and it does not command the ignition in DHW mode.

  Check that the cold water inlet filter is not clogged with limescale; insufficient flow due to this reason can mimic the fault of the sensor.

• 02

  The hot water appears and disappears while the tap remains open, without anyone turning it off.

  Cause: An unstable reading from the flow meter causes the boiler to repeatedly turn the burner on and off.

  Open the tap to the maximum: if the cut only occurs at low flow, it may be a network pressure issue, not a sensor problem.

• 03

  The display shows a fault warning for the flow meter or flow sensor.

  Cause: The electronics detect a signal outside the expected values and block the domestic hot water system to protect the boiler.

  Reset the boiler and try again: if the warning reappears when opening the tap, check the sensor in more detail before ordering it.

• 04

  The domestic hot water fault appears equally in different taps throughout the house.

  Cause: If the fault is general and not specific to a faucet, it indicates that the problem lies in the flow meter and not in the faucet or the installation.

  Discard a faulty thermostatic or mixing tap by testing with a conventional tap.

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.

Data sheet for the Saunier Duval S5720200 flow meter

Catalogue reference

S5720200

Uniclima internal SKU

CSDICF35E

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

Manuals and technical documentation

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

• Saunier Duval Isofast Isofast Condens F30E Manual (PDF) Document © Saunier Duval, provided as a technical reference.
• Saunier Duval Thema Nox / Thema Condens Thema Condens F25 Manual (PDF) Document © Saunier Duval, provided as a technical reference.
• Saunier Duval Thematek S F24E Manual (PDF) Document © Saunier Duval, provided as a technical reference.