Pressure Sensor Saunier Duval Thema Condens F24 Ref. S5720500
Saunier Duval Thema Condens F24 includes a pressure sensor that measures the water circuit pressure and sends the information to the control board. If this part fails, you will notice incorrect readings and possible lockouts due to a false lack of pressure, which can generate the fault code F9: Water pressure detector failure. This sensor is compatible with several models, such as Thema Classic F 25 E, C 25 E, F 30 E, C 24 E1, and F 24 E1, among others. A technician must confirm through diagnosis whether it needs to be replaced when it shows signs of malfunction.
- Type of part
- Pressure sensors
- Status
- Refurbished
- Catalogue reference
- S5720500
- Warranty
- 1 year
Saunier Duval boilers compatible with reference S5720500
Pressure sensor with reference S5720500. Six confirmed compatibilities: F 25 E and C 25 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F 25 E | ThemaClassic | Contrasted |
| Saunier Duval C 25 E | ThemaClassic | Contrasted |
| Saunier Duval F 30 E | ThemaClassic | Contrasted |
| Saunier Duval C 24 E1 | ThemaClassic | Contrasted |
| Saunier Duval F 24 E1 | ThemaClassic | Contrasted |
| Saunier Duval F 35 E | Isofast | Contrasted |
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. S5720500 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference S5720500. If it is not visible, do not identify the part from its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms that require diagnosis in the pressure switch S5720500
The pressure sensor measures the water pressure for the electronics. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler tries to start but shuts down immediately showing a pressure fault, even though the circuit is well filled.
Cause: The sensor sends a low or no pressure reading to the PCB, which interrupts the ignition for safety.
Check with the manometer that the pressure is between 1 and 1.5 bar before changing the sensor.
- 02
The pressure warning remains on the screen even though the boiler's pressure gauge indicates correct pressure.
Cause: When the sensor fails, the PCB is guided by its signal and not by the actual pressure of the circuit.
Compare the digital value with the analog manometer several times throughout the day; if they always differ by the same amount, point to the sensor.
- 03
No pressure reading is reaching the PCB, as if the sensor did not exist.
Cause: A sensor with a cut internal circuit stops transmitting a signal, and the PCB assumes that there is no pressure.
Before replacing it, check that the connector is not loose, corroded, or with exposed wires.
- 04
The boiler works well for a while and then locks out due to pressure without anyone having touched the filling.
Cause: A sensor with an intermittent fault may provide a good signal at first and lose it with use or heat.
Note how long it takes for the fault to appear after ignition; if it is repetitive, lean towards the sensor rather than a slow leak.
Fault codes Saunier Duval that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| F9 | Water pressure sensor fault. | The pressure transducer S5720500 delivers an absent/out-of-range signal or does not reach the PCB, the electronics interpret an abnormal pressure and lock with F9; verify by measuring the sensor signal and the harness/wiring and comparing with an external manometer. |
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 Saunier Duval pressure sensor S5720500
- Catalogue reference
- S5720500
- Uniclima internal SKU
- CPSDTCF24
- Brand
- Saunier Duval
- Type of part
- Pressure sensors
- Units in stock
- 3 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.
- part code
- 0020016532
- batch brand
- LOT: 090652 0... (cut off at the edge)
Frequently asked questions about the pressure sensor S5720500
What code is recorded on the pressure sensor of the Saunier Duval Thema Condens F24?
Is this pressure sensor Ref. S5720500 compatible with the ThemaClassic range?
When should the pressure switch of the ThemaCondens F24 boiler be replaced?
How many models are compatible with the pressure sensor CPSDTCF24?
What fault code is documented for this pressure sensor?
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