
Ferroli Domitop F 30 E PCB Ref. 39809261
When you open the hot water tap, the Ferroli Domitop F 30 E PCB (Ref. 39809261) is responsible for controlling the ignition and modulation of the burner, as well as the pump and safety features of the boiler. If this part fails, you will notice that the boiler does not start, locks out, or exhibits erratic behavior. It is compatible with boilers from the Domitop range, such as the Domitop F 24 E, Domitop C 24 E, and other models. It is recommended to replace it if you experience faults like A02, F04, A23, or A24, which indicate issues with the control board.
Ferroli boilers compatible with reference 39809261
PCB with reference 39809261. Four confirmed compatibilities: Domitop F 24 E and Domitop F 30 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Domitop F 24 E | Domitop | Contrasted |
| Ferroli Domitop F 30 E | Domitop | Contrasted |
| Ferroli Domitop C 24 E | Domitop | Contrasted |
| Ferroli Domitop C 30 E | Domitop | 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. 39809261 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 39809261. 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 PCB 39809261 resolves.
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 ignite and shows no signs.
Cause: The PCB does not supply power to the control circuits.
Check if there is mains voltage and inspect the internal fuse of the PCB before replacing it.
- 02
A click from the relay is heard, but the pump or the gas valve does not work.
Cause: The output relay does not close properly and the component does not receive power.
With the multimeter set to continuity, check if the relay is functioning before replacing the PCB.
- 03
The fault code on the panel changes every time it is reset.
Cause: The control electronics misinterpret the signals from the connected sensors and generates variable faults.
Note the codes and check if they always indicate the same sensor before replacing the PCB.
- 04
It starts the cycle and stops by itself after a few seconds.
Cause: The PCB interrupts the supply because it does not maintain the flame safety signal.
Check the ionization electrode and its wiring before considering the PCB as faulty.
Fault codes for Ferroli that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| A02 | Electrode or PCB fault. | The PCB may cause flame detection with the burner off or not correctly manage the electrode signal; first check the electrode/wiring, and if they are correct, check the ionisation circuit and PCB outputs. |
| F04 | Parameter fault on the control board: incorrect setting on the PCB. | Internal parameters of the PCB incorrectly loaded/configured (e.g., after replacement or power cut); verify/reload service values and, if not possible, replace the PCB. |
| A23 | PCB parameter error. | Incorrect or corrupt PCB configuration/parameter table; access the technical menu to check and reprogram, or replace the PCB if it does not accept programming. |
| A24 | PCB parameter error. | Same origin as A23: parameters of the PCB out of specification; confirm in service menu and correct or replace the PCB if it does not save/calibrate. |
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.
Ferroli PCB data 39809261
- Catalogue reference
- 39809261
- Brand
- Ferroli
- Type of part
- PCBs (control boards)
- Units in stock
- 0 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ferroli Domitop C 30 E Manual (PDF)Document © Ferroli, provided as a technical reference.












