
3-Way Valve Actuator Motor For Saunier Duval And Glow-Worm - Ref. 96458148
In Saunier Duval and Glow-Worm boilers, the actuator motor for the 3-way valve is responsible for directing water between the heating circuit and the domestic hot water circuit. When it fails, you will notice that there is hot water but no heating, or vice versa, and there may even be a mixing of both circuits. This actuator motor is compatible with models from the ThemaClassic, Themafast, Isofast, Isomax, Isotwin, and Combitek ranges, among others. It should be replaced when these malfunction symptoms occur.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference S5720600
3-way valve with reference S5720600. 25 confirmed compatibilities: C 24 E and F 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C 24 E | ThemaClassic | Contrasted |
| Saunier Duval F 24 E | ThemaClassic | Contrasted |
| Saunier Duval F 25 E | ThemaClassic | Contrasted |
| Saunier Duval C 25 E | ThemaClassic | Contrasted |
| Saunier Duval F 30 E | ThemaClassic | Contrasted |
| Saunier Duval F AS 25 E | ThemaClassic | Contrasted |
| Saunier Duval F AS 30 E | ThemaClassic | Contrasted |
| Saunier Duval C 24 E | Themafast | Contrasted |
| Saunier Duval F 24 E | Themafast | Contrasted |
| Saunier Duval F 30 E | Themafast | Contrasted |
| Saunier Duval C 28 E | Themafast | Contrasted |
| Saunier Duval C 28 E | Isofast | Contrasted |
| Saunier Duval F 28 E | Isofast | Contrasted |
| Saunier Duval C 35 E | Isofast | Contrasted |
| Saunier Duval F 35 E | Isofast | Contrasted |
| Saunier Duval C 28 E | Isomax | Contrasted |
| Saunier Duval F 28 E | Isomax | Contrasted |
| Saunier Duval C 28 E2 | Isomax | Contrasted |
| Saunier Duval F 28 E2 | Isomax | Contrasted |
| Saunier Duval C 24 EA | Isotwin | Contrasted |
| Saunier Duval C 28 EA | Isotwin | Contrasted |
| Saunier Duval F 24 EA | Isotwin | Contrasted |
| Saunier Duval F 28 EA | Isotwin | Contrasted |
| Saunier Duval C 24 E | Combitek | Contrasted |
| Saunier Duval F 24 E | Combitek | 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. S5720600 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 S5720600. 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 S5720600 three-way valve resolves.
The 3-way valve diverts water between heating and domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The heating works but there is no hot water when the tap is opened, or the other way around: there is domestic hot water but the radiators do not heat up.
Cause: The motor does not move the valve stem, so the water always circulates through the same circuit.
With the boiler running, check if the motor body rotates or vibrates when requesting hot water; if it does not move, the fault is in the motor.
- 02
A continuous buzzing or a dry clicking sound is heard in the area of the gas valve when it should switch modes.
Cause: The motor tries to turn, but the internal gear is worn or jammed and does not complete the movement.
Listen to see if the noise stops on its own or persists for more than 10-15 seconds; a buzzing sound that doesn't go away indicates a problem with the motor, not just accumulated scale.
- 03
The boiler displays a warning or code related to the three-way valve on the screen.
Cause: The control unit detects that the motor does not reach the expected position within the scheduled time and indicates it as a fault.
Turn off and turn on the boiler and check if the fault code reappears when requesting domestic hot water or heating; if it comes back immediately, it is not a one-time fault.
- 04
The water comes out lukewarm, neither cold nor really hot, in heating and at the tap at the same time.
Cause: The motor has stopped halfway, and the valve allows mixed water to pass through both circuits.
Check if the body of the gas valve is hot on both sides at the same time; if so, it indicates that the stem has not reached the stop.
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 S5720600 three-way valve.
- Catalogue reference
- S5720600
- Brand
- Saunier Duval
- Type of part
- 3-way valves
- Units in stock
- 4 units
- 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.
- Secondary code
- 96458148
- Nominal voltage
- 220V - 240V
- Frequency
- 50 Hz
- Temperature class
- T60
- Batch code or date
- 4404
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval F 28 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.












