Pressure Sensor Saunier Duval Thematek C 24 E - Code 0020016532
The Saunier Duval Thematek C 24 E pressure switch is a sensor that measures the water circuit pressure and sends this information to the control board. When it fails, it can cause incorrect readings and lockouts, resulting in fault code F9: Water pressure detector failure. This sensor is compatible with models such as F 25 E, C 25 E, F 30 E, C 24 E1, and F 24 E1 from the ThemaClassic range, as well as with the F 35 E from the Isofast range. It is recommended to replace it if you experience pressure issues or lockouts in the system.
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Consult via WhatsAppSaunier 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
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- 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 and faults that the pressure sensor S5720500 resolves.
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 is locking out with a pressure fault even though the pressure gauge is in the correct zone.
Cause: The sensor sends a different value than what the mechanical manometer displays.
Note the exact value of the manometer and check on the display what pressure the PCB is reading.
- 02
The boiler does not start and remains on standby with a pressure warning.
Cause: Without a valid pressure reading, the control board does not allow the burner to ignite.
Bleed the air from the radiators and confirm the actual pressure before considering that the sensor is faulty.
- 03
The pressure fault appears and disappears on its own, without you having touched anything in the circuit.
Cause: A sensor with an intermittent signal causes the reading to fluctuate even though the actual pressure is stable.
Check that the connector of the sensor is properly fitted and free of oxidation on the contacts.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 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
- Brand
- Saunier Duval
- Type of part
- Pressure sensors
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- 1-2 business days
- Return
- 14 days
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Code printed on the part
- 0020016532
- Batch production
- 180136 A
Frequently asked questions about the pressure sensor S5720500
What code and batch does the pressure sensor of the Saunier Duval Thematek C 24 E have?
For which models is the pressure switch CPCTSC24E compatible?
What fault indicates that the pressure switch needs to be replaced in the Thema C 24 E?
What fault code is documented for the pressure switch of the Saunier Duval Thematek C 24 E?
Is this pressure switch suitable for boilers from other brands?
Where can I find more information about the installation of the pressure switch?
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