Left Hydraulic Group Ariston Clas ONE 24 Ref. 65117952
When you turn on the hot water tap or activate the heating, the Left Hydraulic Group Ariston Clas ONE 24 is responsible for directing and distributing the water between the circuits of the boiler. If this part fails, you may notice leaks, loss of pressure, or issues with hot water production. It is compatible with several Ariston models, including the Clas ONE 24 FF and the Clas ONE System 24 FF, among others. It should be replaced when you experience these symptoms to ensure the proper performance of the boiler.
VAT included
Consult via WhatsAppAriston boilers compatible with reference 65117952
Hydraulic group with reference 65117952. Four confirmed compatibilities: Clas ONE 24 FF and Clas ONE 30 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Clas ONE 24 FF | Ariston | Contrasted |
| Ariston Clas ONE 30 FF | Ariston | Contrasted |
| Ariston Clas ONE System 24 FF | Ariston | Contrasted |
| Ariston Clas ONE System 30 FF | Ariston | 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. 65117952 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 65117952. 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 65117952 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
The boiler needs pressure recharging more frequently than usual.
Cause: The left hydraulic group has a gasket or fitting that leaks water gradually, sometimes without a noticeable puddle.
Check the fittings and the body of the hydraulic group on the left side with dry paper.
- 02
Moisture or dripping appears on the lower left side of the boiler.
Cause: The body of the hydraulic group is cracked or an internal seal has lost its tightness.
Check the leak point with the boiler cold and again after a heating cycle.
- 03
The domestic hot water comes out with low pressure or intermittently.
Cause: The water passage of the hydraulic group is partially blocked, usually by limescale.
Compare the flow rate at a faucet close to the boiler with one that is farther away.
- 04
There is no domestic hot water, but the heating works normally.
Cause: The domestic hot water circuit of the hydraulic group is blocked, or the flow sensor does not detect water consumption.
Open the hot water tap slowly and check if the boiler responds.
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 Ariston hydraulic group 65117952
- Catalogue reference
- 65117952
- Brand
- Ariston
- Type of part
- Hydraulic units
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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.
- maximum pressure
- 3 BAR
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ariston Clas ONE 24 FF Manual (PDF)Document © Ariston, provided as a technical reference.
Frequently asked questions about the hydraulic group 65117952
Is this left hydraulic group Ariston Clas ONE 24 (Ref. 65117952) compatible with other models?
How many models are compatible with this hydraulic group?
What is the reference for this left hydraulic group?
Are there documented fault codes for this product?
Can I use this hydraulic group in a boiler from a different range?
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