
Bertelli & Partners PCB for Egis NOx / Pigma NOx 24-28 FF
The control PCB governs the ignition, burner modulation, pump, and safety features of the Bertelli & Partners boiler for Egis NOX / Pigma NOX 24-28 FF. When it fails, the boiler may not start, lock out, or behave erratically, displaying faults such as 3 02, 3 03, 3 05, 3 06, or 3 07. This model is compatible with several boilers, including Pigma Nox 24 FF NG, Pigma Nox 28 FF NG, Egis Nox 24 FF NG, among others. A technician must confirm through diagnosis whether the PCB needs to be replaced when these operational issues are detected.
Ariston boilers compatible with reference 65112117
PCB with reference 65112117. Six confirmed compatibilities: Pigma Nox 24 FF NG (3310313) and Pigma Nox 24 FF BUT (3310315).
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Pigma NOx 24 FF NG (3310313) | Chaffoteaux Pigma Nox | Contrasted |
| Ariston Pigma NOx 24 FF BUT (3310315) | Chaffoteaux Pigma Nox | Contrasted |
| Ariston Pigma NOx 28 FF NG (3310314) | Chaffoteaux Pigma Nox | Contrasted |
| Ariston Egis NOx 24 FF NG (3300550) | Ariston Egis Nox | Contrasted |
| Ariston Egis NOx 24 FF LPG (3300552) | Ariston Egis Nox | Contrasted |
| Ariston Egis NOx 28 FF NG (3300551) | 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 ref. 65112117 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 65112117. 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 that require diagnosis on the PCB 65112117
The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not turn on, there is no light on the display, and nothing sounds when power is supplied.
Cause: The PCB is not sending power to the other components of the boiler.
Measure the input voltage and check the fuse on the PCB before replacing it.
- 02
The display shows a fault code that does not clear even when disconnecting and turning it back on.
Cause: The electronics block operation upon detecting a safety fault in a sensor or component.
Note the exact code and consult the manual before purchasing: it could be a sensor and not the PCB.
- 03
The boiler does not respond to the thermostat or the remote control.
Cause: The PCB does not process or transmit the heating demand signal.
Try to ignite it manually at the boiler itself to rule out issues with the external wiring.
- 04
The fan does not start when the boiler should ignite.
Cause: The relay that controls the fan from the PCB is not working.
With the boiler in demand, measure with a multimeter if voltage is reaching the fan connector.
- 05
The boiler turns on and off repeatedly without being prompted.
Cause: A fault in the PCB causes unstable signals that lead to unwanted starts.
Make sure that the connectors are properly tightened and free of corrosion before replacing the PCB.
Ariston fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| 3 02 | Communication error. | Communication fault between the main board and the equipment's electronics; check the bus/connectors and auxiliary voltages on the PCB, and if everything is correct, the fault is in the board itself. |
| 3 03 | Main PCB fault. | Self-diagnosis detects an internal fault in the PCB; check power supplies (230 V and 5/12 V), ground, and connectors; if the error persists after the checks, replace the PCB. |
| 3 05 | Main PCB fault. | Internal fault of the PCB (control/signals); check voltages and disconnect peripherals to rule out shorts; if it reappears with correct connections, the board is damaged. |
| 3 06 | Main PCB fault. | The main PCB has a hardware fault; measure auxiliary voltages and check solder joints/connectors; if the unit remains in alarm with no peripherals connected, a technician must confirm whether to replace the PCB. |
| 3 07 | Main PCB fault. | Persistent fault of the PCB; check network stability (≈230 V), earth/ground, and continuity of connectors; if everything is correct and the code persists, the PCB is faulty. |
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 PCB 65112117
- Catalogue reference
- 65112117
- Uniclima internal SKU
- PLCEAENOX24
- Brand
- Ariston
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- PCB manufacturer
- BERTELLI & PARTNERS
- Label next to connector
- SB2
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ariston Pigma Nox 24 FF NG (3310313) Manual (PDF)Document © Ariston, provided as a technical reference.









