Ariston
Ariston Non Return Valve 65114918-01
Ariston check valve cartridge 65114918-01 for Alteas, Cares, CLAS, E-Combi, E-System and Genus ONE appliances.
At a glance
- Part type: non return valve / check valve cartridge
- Also known as 8903725
£16.63
£13.86 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 65114918-01 is a non return valve cartridge (check valve cartridge) used in Ariston ONE and NET ONE series gas boilers. It sits in the hydraulic circuit and prevents reverse flow of water through the appliance, keeping flow direction correct through the relevant pipework and components. It is a serviceable cartridge-type component rather than a complete valve body.
Signs this part needs replacing
- Water passing the wrong way through the circuit, indicating the valve is not seating
- Persistent flow noise or water movement heard when the appliance is idle
- Reduced or erratic flow through the affected circuit despite correct pump operation
- Debris or scale visible on the cartridge when the housing is opened
- Leaks or weeping from the valve housing area
Before you order
- Confirm the appliance model and GC number against the fitment list above
- Check the part number stamped or printed on the existing cartridge
- Inspect the valve housing and seals for damage before refitting a new cartridge
- Verify the fault is the valve itself and not a blockage or pump issue elsewhere in the circuit
Compliance
| Alternative numbers | 8903725 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ALTEAS ONE NET 24 | — | — | — | |
| ARISTON ALTEAS ONE NET 30 | 33-014-49 | 33-014-49 | — | — |
| ARISTON ALTEAS ONE NET 35 | 33-014-50 | 33-014-50 | — | — |
| ARISTON CARES ONE 24 | 47-116-79 | 47-116-79 | — | — |
| ARISTON CARES ONE 30 | 47-116-80 | 47-116-80 | — | — |
| ARISTON CLAS NET ONE 24 UK | 47-116-88 | 47-116-88 | — | — |
| ARISTON CLAS NET ONE 30 UK | 47-116-89 | 47-116-89 | — | — |
| ARISTON CLAS NET ONE 38 UK | 47-116-90 | 47-116-90 | — | — |
| ARISTON CLAS ONE 24 UK | 47-116-85 | 47-116-85 | — | — |
| ARISTON CLAS ONE 30 UK | 47-116-86 | 47-116-86 | — | — |
Showing 10 of 29 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
ARISTON appliance manual — CLAS NET ONE 24 UK (GC 47-116-88), CLAS NET ONE 30 UK (GC 47-116-89), CLAS NET ONE 38 UK (GC 47-116-90), CLAS ONE 24 UK (GC 47-116-85), CLAS ONE 30 UK (GC 47-116-86), CLAS ONE 38 UK (GC 47-116-87), CLAS SYSTEM ONE 18 UK (GC 41-116-49), CLAS SYSTEM ONE 24 UK (GC 41-116-50), CLAS SYSTEM ONE 30 UK (GC 41-116-51)
manualmanualARISTON appliance manual — E-COMBI ONE 24 (GC 47-116-83), E-COMBI ONE 30 (GC 47-116-84), E-SYSTEM ONE 24 (GC 41-116-47), E-SYSTEM ONE 30 (GC 41-116-48)
manualNo technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.