Main PCB Ariston Clas ONE 24 Ref. 65116585 06
The Main PCB Ariston Clas ONE 24, with reference 65116585, is the component that controls the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, become locked, or operate erratically. Users may notice this malfunction through fault codes such as 302, 303, 305, 306, or 307. This board is compatible with models from the Clas ONE range, such as the Clas ONE 24, Clas ONE WiFi 24, Clas ONE WiFi 30, and Clas ONE WiFi 35, among others. A technician must confirm through diagnosis whether it needs to be replaced when the mentioned symptoms occur.
Ariston boilers compatible with reference 65116585 06
PCB with reference 65116585 06. Six confirmed compatibilities: Clas ONE 24 and Clas ONE WiFi 24.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ariston Clas ONE 24 | Clas ONE | Contrasted |
| Ariston Clas ONE WiFi 24 | Clas ONE | Contrasted |
| Ariston Clas ONE WiFi 30 | Clas ONE | Contrasted |
| Ariston Clas ONE WiFi 35 | Clas ONE | Contrasted |
| Ariston Clas B ONE 35 | Clas B ONE | Contrasted |
| Ariston Clas B ONE WiFi 35 | Clas B ONE | 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. 65116585 06 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 65116585 06. 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 65116585 06
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 is completely off, with no lights or display when connected to the power supply.
Cause: The PCB controls the power supply to the entire boiler; if it is damaged, no current reaches any component.
Check the fuse and the power supply of the boiler before considering replacing the PCB.
- 02
An error code appears on the screen that does not disappear even after resetting.
Cause: The electronics block the boiler when detecting a problem and cannot resolve it on its own.
Note the code and cut the power for one minute; if the fault reappears, the PCB is the one that is failing.
- 03
In the WiFi versions, the boiler does not connect to the app nor can it be paired with the mobile.
Cause: The WiFi module is located on the PCB and can fail even if the boiler is functioning properly.
Bring the router closer and reset the boiler before thinking that the WiFi module is broken.
- 04
The remote control or thermostat does not turn on the boiler even though it shows a temperature.
Cause: The PCB does not receive or process the power-on command from the remote control or the communication system.
Check the wiring of the control in the terminals of the PCB before replacing it.
Ariston fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| 302 | Internal communication fault | This symptom may be related to the part, but it does not confirm that it is faulty. A technician must check the equipment and its inspection according to the manual before deciding on a repair or replacement. |
| 303 | Fault in the main PCB. | The self-diagnostic system has detected a fault in the PCB that prevents it from functioning properly. Check the power supplies and the ground connections of the PCB. If you don't find any external issues, the PCB will need to be replaced. |
| 305 | Fault in the main PCB. | This symptom may be related to the part, but it does not confirm that it is faulty. A technician must check the equipment and its inspection according to the manual before deciding on a repair or replacement. |
| 306 | Fault in the main PCB. | There is a recurring fault in the PCB, whether in the circuits, relays, or regulation. Check the power supplies and communications on the board. If you do not find external issues and the fault persists after a reset, a technician must confirm whether it is necessary to replace the PCB. |
| 307 | Fault in the main PCB. | The self-diagnosis has detected an internal problem in the PCB. Check the voltages, the bus, and the inputs. If the sensors and the wiring are fine, the solution is to replace the PCB. |
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 65116585 06
- Catalogue reference
- 65116585 06
- Uniclima internal SKU
- PLC-ART12X
- Brand
- Ariston
- Type of part
- PCBs (control boards)
- Units in stock
- 2 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the PCB 65116585 06
Does this PCB fit an Ariston CLAS ONE WIFI 30 boiler?
Spare parts related to Ariston Clas ONE
