
Heating Hydraulic Body Saunier Duval Thema NOx F 24
The Hydraulic Body of the Saunier Duval Thema NOX F 24 heating system is a component responsible for directing and distributing water between the circuits of the boiler. When it malfunctions, you may notice leaks, loss of pressure, or issues with domestic hot water production. This part is compatible with the Saunier Duval Thema NOX F 24 boiler and can also be used in models such as the Hermann Supermicra Ecoplus, among others. It is recommended to replace the hydraulic body when these symptoms are detected to avoid further damage.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 010005943
Hydraulic group with reference 010005943. Four confirmed compatibilities: Thema NOX F 24 and Supermicra Ecoplus.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Thema NOx F 24 | Saunier Duval | Contrasted |
| Saunier Duval Supermicra Ecoplus | Hermann | Contrasted |
| Saunier Duval Supermicra Ecoplus 24 | Hermann | Contrasted |
| Saunier Duval Supermicra Ecoplus 24 SE | Hermann | 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. 010005943 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 010005943. 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 hydraulic group 010005943 resolves.
The hydraulic group includes the valve, the by-pass, and the water connections. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
Water or moisture appears on the floor right under the boiler, without seeing which pipe it is coming from.
Cause: The heating hydraulic body has several water connections, and a crack or pore in the casting can leak without the exact source being noticeable.
Dry the entire area with paper and check again after a while of operation; trace the moisture upwards to locate the exact point before requesting the spare part.
- 02
The pressure of the heating circuit gradually decreases over the days, although no puddle is visible.
Cause: A small leak in the hydraulic body, due to a fine crack or a dry joint, can lose water in the form of minimal dripping or steam.
Check all threaded connections and nearby hoses before suspecting the body, as a loose gasket can be fixed without replacing the part.
- 03
There is rust, greenish deposits, or white limescale residues around a specific area of the hydraulic block.
Cause: It is the brand that leaves water when evaporating at a sustained leak point on the casting or fittings of the body.
Clean the area and check if the stain reappears after a heating cycle to confirm that the leak is still active.
- 04
The boiler loses pressure quickly when the heating starts, but it maintains it when the boiler is off.
Cause: The hydraulic body operates at higher pressure and temperature with the pump running, which can open a crack that does not leak when cold.
Turn on the heating for a few minutes and monitor the hydraulic body area; if the leak only appears when hot, that confirms the diagnosis before purchasing.
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 hydraulic group 010005943
- Catalogue reference
- 010005943
- Brand
- Saunier Duval
- Type of part
- Hydraulic units
- 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.
- Material
- Brass









