B&P Gas Valve For Chaffoteaux Ariston Pigma NOx 24 FF - Ref. 65108428
Gas valve manufactured by B&P (Bertelli & Partners) that regulates the gas supply to the burner of Chaffoteaux/Ariston Pigma NOX and EGIS NOX boilers. The catalog attributed it to SIT, but the label carries the B&P logo and 'Made in Italy (Verona)'. It is replaced when the boiler does not ignite or loses tightness in the gas circuit.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 65108428
Gas valve with reference 65108428. Four confirmed compatibilities: Pigma Nox 24 FF and Pigma Nox 28 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Pigma NOx 24 FF | Chaffoteaux Pigma Nox | Contrasted |
| Chaffoteaux Pigma NOx 28 FF | Chaffoteaux Pigma Nox | Contrasted |
| Chaffoteaux Egis NOx 24 FF | Ariston Egis Nox | Contrasted |
| Chaffoteaux Egis NOx 28 FF | 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 ref. 65108428 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 65108428. 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 gas valve 65108428 resolves.
The gas valve regulates and modulates the gas flow to the burner. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite and locks up when pressing the ignition button.
Cause: The gas valve does not allow gas to flow to the burner even though the control board commands it.
Measure if there is power at the gas valve connector before replacing it.
- 02
There is a smell of gas near the boiler, especially in the area of the burner.
Cause: A leak in the gas valve allows gas to escape even when it is closed.
Apply soapy water to the connections of the gas valve to identify the leak.
- 03
The boiler shows a gas valve error and cannot be reset.
Cause: The control board detects that the gas valve is not responding and blocks operation for safety.
Reset the boiler once and check if the fault returns before replacing the gas valve.
- 04
The boiler takes longer than usual to ignite, with several attempts before it works.
Cause: A slow or partial closure of the gas valve prevents enough gas from reaching the burner.
Observe the ignition with the cover open and count the attempts before acting on the gas valve.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| E20 | EVG lockout | The EVG (gas valve) does not open/close correctly or does not receive the control signal. Check voltage at the valve connectors, continuity of coil/wiring, and pressure at the burner during the ignition attempt. |
| E21 | EVG lockout | Gas solenoid valve fault or its control (coil/wiring), preventing gas supply. Check power supply to the EVG, coil resistance, and that there is a pressure variation at the test point when ignition is commanded. |
| E22 | EVG lockout | Malfunction of the electronic gas valve or absence of control signal from the PCB. Check control signal to the EVG, continuity of the EVG harness, and mechanical operation of the valve (opens/closes) with a manometer at the burner connection. |
| E23 | EVG lockout | Lockout due to fault in the gas solenoid valve or its wiring, preventing gas flow to the burner. Check power/ground in EVG, wiring continuity, and pressure response at the burner connection when ignition starts. |
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 gas valve Chaffoteaux 65108428
- Catalogue reference
- 65108428
- Brand
- Chaffoteaux
- Type of part
- Gas 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.
- Type
- SGV100
- Maximum inlet pressure
- 65 mbar (also indicated as 1/2 psi)
- Voltage
- 24 VDC, class B+A
- Temperature range
- 5°F to 140°F
- CE code
- Reg.CE-0085BT0040
- Date/lot code
- Date 0215 00282 BG0057
- There are units of this same SKU with different batch codes (BG0057 compared to another with BG0043): they are distinct physical items of the same product, the factory reference varies according to the batch.
Frequently asked questions about the gas valve 65108428
Is the gas valve of the Pigma NOX 24 FF a SIT or a B&P?
What is the maximum pressure allowed for the B&P gas valve of the Pigma NOX 24 FF?
Does this B&P gas valve also work for the Egis NOX 28 FF NG?
Does the Ref. code 65108428 appear on the label of the gas valve of the Pigma NOX 24 FF?
What fault indicates that the gas valve of the Egis NOX 24 FF needs to be replaced?
Spare parts related to Chaffoteaux Chaffoteaux Pigma Nox
