Ferroli Bluehelix Tech 35C PCB Ref. 39845845
Ferroli Bluehelix presents the Ferroli Bluehelix Tech 35C PCB (control board) Ref. 39845845, a control component that regulates the ignition, burner modulation, pump, and safety features of the boiler. When this board fails, the boiler may not start, become locked, or operate erratically, displaying faults such as A23, A24, A61, A63, or A65. It is compatible with models such as Bluehelix Pro 25C and Bluehelix Pro 32C, among others. A technician must confirm through diagnosis whether it is necessary to replace the board when these symptoms or faults occur.
Ferroli boilers compatible with reference 39845845
PCB with reference 39845845. Three confirmed compatibilities: Superlative Condens 25C and Bluehelix Pro 25C.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Superlative Condens 25C | Cointra Superlative Condens | Contrasted |
| Ferroli Bluehelix Pro 25C | Ferroli Bluehelix (equivalent PCB rebadge ABM03) | Contrasted |
| Ferroli Bluehelix Pro 32C | Ferroli Bluehelix (equivalent PCB rebadge ABM03) | 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. 39845845 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 39845845. 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 39845845
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 or display anything on the screen.
Cause: The control module does not send current to the other components.
Check the fuse on the PCB and the input current before replacing it.
- 02
A fault code appears on the screen and the boiler gets locked.
Cause: The control module detects a problem and shuts off the ignition for safety.
Note the exact code and check the component indicated before replacing the PCB.
- 03
The flame ignites but does not modulate; it rises and falls without relation to the heat demand.
Cause: The modulation driver on the PCB does not correctly manage the signal to the gas valve.
First, check the flame or ionization sensor, because a fault there can appear to be a PCB issue.
- 04
The boiler control is unresponsive or frozen.
Cause: There is a communication fault between the control module and the regulator.
Try a general reset and check the connection cable or bus of the control before replacing the PCB.
Ferroli fault codes that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| A23 | Anomaly in the parameters of the control board. | PCB parameters misconfigured (e.g., after replacing the board or losing calibration); check by entering the service menu and correcting/calibrating the parameters. |
| A24 | Anomaly in the parameters of the control board. | PCB parameters misconfigured; check and reprogram/calibrate from service. If it reappears, inspect the PCB. |
| A61 | ABM03 control board anomaly (internal error). | Internal fault of the ABM03 control unit/PCB; check the grounding and power supply. If not resolved after reset/calibration, replace the PCB. |
| A63 | ABM03 control board anomaly (internal error). | Internal error in the ABM03 PCB/control board; check grounding and, if it persists after reset, replace the board. |
| A65 | ABM03 control board anomaly (internal error). | Internal fault of the ABM03 controller/PCB; check earth and power supply, and if it does not clear, replace the board. |
| F64 | ABM03 control board anomaly (internal error). | Internal fault in the ABM03 PCB/control board; confirm correct grounding and stable power supply. If it persists, replace the PCB. |
| F66 | ABM03 control board anomaly (internal error). | Internal fault of the ABM03 control unit on the PCB; check grounding/electrical noise and, if it persists, replace the board. |
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 Ferroli 39845845 PCB.
- Catalogue reference
- 39845845
- Uniclima internal SKU
- PLFE009
- Brand
- Ferroli
- 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 code (white label)
- S4962V3182
- Software
- 64319-012
- Code Cd
- ABM03A
- Code printed on the circuit (silkscreen)
- CS0294C-GM-11/11
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ferroli Superlative Condens 25C Manual (PDF)Document © Ferroli, provided as a technical reference.
Frequently asked questions about the PCB 39845845
Is this Ferroli Bluehelix Tech 35C PCB (ref. 39845845) compatible with my Bluehelix Pro 32C boiler?
Which models are compatible with the Ferroli Bluehelix Tech 35C PCB?
What fault codes are documented for this PCB?
What is the reference of the PCB for the Ferroli Bluehelix Tech 35C?
How can I verify if this PCB is the correct one for my model?
Spare parts related to Ferroli Ferroli Bluehelix (equivalent PCB rebadge ABM03)
