3-Way Valve Saunier Duval ThemaClassic F24E Ref. S1020800
Refurbished Saunier Duval 3-way valves

3-Way Valve Saunier Duval ThemaClassic F24E Ref. S1020800

The Saunier Duval ThemaClassic F24E three-way valve, with reference S1020800, is responsible for directing water between the heating circuit and the domestic hot water circuit. If it malfunctions, 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 component is compatible with several models from the ThemaClassic and Thematek ranges, among others, such as the ThemaClassic F 24 E and the Thematek F 24 E. A technician must confirm through diagnosis whether it needs to be replaced when you experience these operational issues.

Type of part
3-way valves
Status
Refurbished
Catalogue reference
S1020800
Warranty
1 year
VAT included Stock · 3 units
Compatibility

Saunier Duval boilers compatible with reference S1020800

3-way valve with reference S1020800. 16 verified compatibilities: ThemaClassic F 24 E and ThemaClassic C 24 E.

Proven compatibility

Boiler modelFamilyVerification
Saunier Duval ThemaClassic F 24 EThemaClassicContrasted
Saunier Duval ThemaClassic C 24 EThemaClassicContrasted
Saunier Duval ThemaClassic C 24 EVThemaClassicContrasted
Saunier Duval ThemaClassic F 25 EThemaClassicContrasted
Saunier Duval ThemaClassic C 25 EThemaClassicContrasted
Saunier Duval ThemaClassic C 25 EVThemaClassicContrasted
Saunier Duval Thematek F 24 EThematekContrasted
Saunier Duval Thematek C 24 EThematekContrasted
Saunier Duval Thematek C 24 EVThematekContrasted
Saunier Duval Thematek C 18 EThematekContrasted
Saunier Duval Thematek C 18 EVThematekContrasted
Saunier Duval Thematek S F 24 EThematekContrasted
Saunier Duval Thematek S C 24 EThematekContrasted
Saunier Duval Thema F 24 EThemaContrasted
Saunier Duval Thema C 24 EThemaContrasted
Saunier Duval Thema C 24 EVThemaContrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if ref. S1020800 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

  1. Find the reference printed on the installed part and check whether it matches the catalogue reference S1020800. 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.
Diagnosis and fault codes

Symptoms that require diagnosis in the 3-way valve S1020800

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 tap water comes out cold while the radiators heat up or vice versa.

    Cause: The valve does not switch circuits and does not direct the water correctly.

    Check if the open tap generates enough flow rate for the flow sensor to detect the demand before inspecting the gas valve.

  • 02

    The boiler does not respond to the change: it remains in the same circuit even when the demand is changed.

    Cause: The internal mechanism that diverts the water is stuck and does not complete the full movement.

    Bleed the heating circuit and make sure there is no air or dirt before considering that the gas valve is damaged.

  • 03

    There is a puddle of water or constant dripping where the 3-way valve is installed.

    Cause: The seals or the shaft of the gas valve have lost tightness due to use and oxidation.

    Dry the area well, turn on the boiler, and locate the exact point of the leak before replacing the part.

Fault codes Saunier Duval that require diagnosis

CodeFaultTechnical checks
F14Heating temperature > 95 °C (temperature limiter).If the 3-way valve (S1020800) gets stuck or does not switch, the boiler remains in the heating circuit during DHW demand, causing overheating and F14; verify by forcing DHW/heating demand and checking that the actuator moves the spindle and that the 3-way valve is not seized/calcified.

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.

Technical data

Data sheet for the Saunier Duval S1020800 three-way valve.

Catalogue reference
S1020800
Uniclima internal SKU
RV3V T-F24E
Brand
Saunier Duval
Type of part
3-way valves
Units in stock
3 units
Status
Refurbished
Warranty
1 year
Shipping
Delivery time shown at checkout
Return
14 days
Frequently Asked Questions

Frequently asked questions about the 3-way valve S1020800

Is this Saunier Duval ThemaClassic F24E 3-way valve Ref. RV3V T-F24E compatible with my boiler?
Yes, this valve is compatible with several models from the ThemaClassic range, including the ThemaClassic F 24 E.
Which models are compatible with the 3-way valve RV3V T-F24E?
The valve is compatible with 16 models from the ThemaClassic, Thematek, and Thema ranges.
What fault codes are documented for this gas valve?
The documented fault code for this gas valve is F14.
Can I use this valve in boilers from the Thematek range?
Yes, the valve is compatible with several models from the Thematek range, such as the Thematek F 24 E and the Thematek C 24 E.
Is the 3-way valve RV3V T-F24E suitable for the ThemaClassic C 24 E?
Yes, the gas valve is compatible with the ThemaClassic C 24 E, among other models.

Spare parts related to Saunier Duval Thematek

Entrega calculada por destino Delivery time shown at checkout
1-year warranty reviewed and tested
14-day return uninstalled parts
Technical support we verify your model
3-Way Valve Saunier Duval ThemaClassic F24E Ref. S1020800