Saunier Duval Thematek F 24 E Flow Switch - Ref. S5720200

Saunier Duval boilers compatible with reference S5720200

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

Proven 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

What determines it is not the boiler model, but the reference printed on the part you already have installed.

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 and faults that the flow meter S5720200 resolves.

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 heating works well, but no hot water comes out when the tap is opened.

  Cause: The flow switch does not detect the flow of water and does not activate the domestic hot water (DHW) circuit.

  Check if the water flow is sufficient and make sure there are no clogged filters or aerators in the faucet before replacing the sensor.

• 02

  The burner takes time to ignite when you request hot water.

  Cause: The micro switch of the detector may be worn or dirty, causing a delay in its response.

  Check if the delay improves when the tap is fully opened; if the problem depends on the flow rate, the sensor could be the culprit.

• 03

  The temperature of the hot water varies without touching the tap.

  Cause: The switch contact opens and closes intermittently, causing the burner to turn on and off.

  Check that the pressure of the installation remains constant while the water flows, so as not to confuse it with a network issue.

• 04

  The boiler control does not indicate any fault, but the domestic hot water is not working.

  Cause: This component can fail without generating a visible fault code.

  Test with the same faucet and with a different one to ensure that the problem is with the boiler and not with the tap or the installation.

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

Brand

Saunier Duval

Type of part

Flow Detectors

Units in stock

5 units

Status

Refurbished

Warranty

1 year

Shipping

1-2 business days

Return

14 days

Manuals and technical documentation

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

• Saunier Duval Thematek S F24E Manual (PDF)Document © Saunier Duval, provided as a technical reference.