
3-Way Valve Bitron 333015 24 045 - EGIS NOx / PIGMA NOx 24-28 FF
The Bitron 333015 24 045 three-way valve is a component used in the EGIS NOX and PIGMA NOX 24-28 FF boilers. Its function is to switch the water between the heating circuit and the domestic hot water circuit. When it fails, the user may notice that there is hot water but no heating, or vice versa, and there may even be a mixing of both circuits. This valve is compatible with models from the Chaffoteaux Pigma NOX and Ariston Egis NOX ranges, among others. It should be replaced when these symptoms occur to ensure proper operation of the boiler.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 65110941
Three-way valve with reference 65110941. Six confirmed compatibilities: Pigma NOX 24 FF (NG) and Pigma NOX 24 FF (BUT).
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Pigma NOx 24 FF (NG) | Chaffoteaux Pigma NOX | Contrasted |
| Chaffoteaux Pigma NOx 24 FF (BUT) | Chaffoteaux Pigma NOX | Contrasted |
| Chaffoteaux Pigma NOx 28 FF (NG) | Chaffoteaux Pigma NOX | Contrasted |
| Chaffoteaux Egis NOx 24 FF (NG) | Ariston Egis NOX | Contrasted |
| Chaffoteaux Egis NOx 24 FF (LPG) | Ariston Egis NOX | Contrasted |
| Chaffoteaux Egis NOx 28 FF (NG) | Ariston Egis NOX | 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 the reference 65110941 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 65110941. 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 3-way valve 65110941 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
You don't have domestic hot water, or it comes and goes, while the heating works fine.
Cause: The valve does not switch to the DHW position when the tap is opened, so the water from the boiler is not sent to the domestic circuit.
First, check the flow rate and the inlet pressure: if the flow rate is low, the boiler will not activate the gas valve even if it is in good condition.
- 02
Water is leaking right where the body of the valve connects with the pipe.
Cause: The O-rings in the body have lost elasticity and do not seal properly under the normal pressure of the installation.
Before changing the gas valve, bleed the air from the circuit: a bubble in that area can sometimes be mistaken for a constant drip.
- 03
The hot water comes out in bursts, as if it cuts off and comes back every few seconds.
Cause: The valve oscillates between positions because the internal mechanism does not close properly in DHW mode.
Check that the tap or the thermostat are not causing the boiler to start and stop repeatedly: this can also give the impression of intermittent water without it being the valve.
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 Chaffoteaux 3-way valve 65110941
- Catalogue reference
- 65110941
- Brand
- Chaffoteaux
- Type of part
- 3-way valves
- 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.
- Component manufacturer
- Bitron
- Manufacturer code
- 333015 24 045
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Chaffoteaux Pigma NOX 24 FF (NG) Manual (PDF)Document © Chaffoteaux, provided as a technical reference.








