3-Way Valve Actuator Motor For Saunier Duval Isotwin F 28 EA - Ref. 105801

Saunier Duval boilers compatible with reference S5720600

3-way valve with reference S5720600. 25 confirmed compatibilities: C 24 E and F 24 E.

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. 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.

1. 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.
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 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 boiler takes a long time to provide hot water or the radiators remain hot when the tap is opened.

  Cause: The motor moves slowly or does not reach the DHW position in time, causing the valve to take longer to divert the flow.

  Time how long it takes for the hot water to come out; if there is a delay of several seconds, the problem may be the motor.

• 02

  A dry click is heard when opening the hot water tap, but the gas valve does not switch.

  Cause: The internal gear of the motor may be worn or broken, causing it to slip without transmitting the rotation.

  Listen for whether the noise repeats every time you request hot water; this indicates a damaged gear rather than a specific electrical fault.

• 03

  The boiler displays a warning or lock related to the three-way valve on the screen.

  Cause: The motor has a micro switch that informs the PCB if it has reached its position; if it does not reach it, the PCB registers the fault.

  Make sure to note the exact code before purchasing and confirm it in your model's manual to ensure it refers to the three-way valve and not to another component.

• 04

  The motor does not turn at all, it makes no noise and does not attempt to move.

  Cause: This may be due to the motor winding being cut or burned.

  With the boiler unplugged, check with a multimeter if the motor has continuity; if it doesn't, the motor is faulty.

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

5 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

105801

Nominal voltage

220V - 240V

Frequency

50 Hz

Temperature class

T60

Batch code or date

0606

Manuals and technical documentation

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

• Saunier Duval F 28 EA Manual (PDF)Document © Saunier Duval, provided as a technical reference.