Ferroli Peisa PCB - Code PCB-4L 04
When you open the hot water tap, the Ferroli Peisa - PCB-4L 04 control board activates to manage 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. This model is compatible with Ferroli boilers from the Peisa range, among others. It is recommended to replace the PCB when you experience these symptoms to restore the normal operation of your system.
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Consult via WhatsAppFerroli boilers compatible with reference 38310783
PCB with reference 38310783. A proven compatibility: Peisa.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Peisa | Ferroli | 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. 38310783 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 38310783. 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 38310783 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 in any mode.
Cause: The PCB does not initiate the ignition due to a fault in its control circuit.
Check that power is reaching the PCB and that the fuse is not blown before replacing it.
- 02
The display shows a PCB fault code.
Cause: The electronics detect a problem and block operation for safety reasons.
Note the exact code and compare it with the manual: some codes indicate a specific sensor and not the PCB.
- 03
The flame ignites but modulates poorly or cuts off on its own.
Cause: The PCB does not properly manage the modulation signal to the gas valve.
Observe the flame behavior (high, low, unstable) to rule out that the problem is with the gas valve.
- 04
The ignition fault appears on some days and not on others.
Cause: A degraded component within the PCB causes intermittent faults that are difficult to replicate.
Record the date and conditions of each fault: if it always coincides with cold starts, it will better guide the diagnosis.
Fault codes for Ferroli that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| A02 | Flame signal present with burner off | The ionization circuit on the PCB interprets a flame when there is none (noise/current leakage or PCB fault). Check the electrode and wiring; if the signal is correct and the issue persists, check/replace the PCB. |
| A23 | Anomaly in the parameters of the control board | Internal parameters of the PCB misconfigured/corrupted (NVRAM). Check and reprogram service parameters; if they are not saved or reappear, replace the PCB. |
| A24 | Anomaly in the parameters of the control board | Incorrect PCB configuration/parameter table. Access the technical menu and load the correct values; if the fault persists after reprogramming, the PCB is defective. |
| A26 | Anomaly in the parameters of the control board | Corruption/incorrect adjustment of PCB parameters. Reprogram parameters with technical tool/menu; if it does not accept changes, replace the PCB. |
| F20 | Anomaly in the parameters of the control board | PCB parameters out of specification. Verify/load factory values; if it reappears after correct loading, probable memory fault of the PCB. |
| F21 | Anomaly in the parameters of the control board | Mismatch/damage in the PCB parameter settings. Check values and reprogram; if not corrected, replace the board. |
| F40 | Anomaly in the parameters of the control board | Internal configuration error of the PCB. Readjust parameters to model specification; if the error returns, defective PCB memory. |
| F47 | Anomaly in the parameters of the control board | Table of parameters for the damaged or incompatible PCB. Load correct/update parameters; if it doesn't stabilize, replace the PCB. |
| A61 | ABM03 control unit anomaly (internal error) | Internal fault of the ABM03 controller integrated in the PCB. Check the grounding and power supply; if it persists, replace the control board/PCB. |
| A63 | ABM03 control unit anomaly (internal error) | Internal error in the control module on the PCB. Check grounding/electrical noise; if diagnosis recommends, replace the PCB. |
| F64 | ABM03 control unit anomaly (internal error) | Internal fault of the PCB controller (ABM03). Check earth/power connection; if it persists, replace the PCB/controller. |
| A65 | ABM03 control unit anomaly (internal error) | Internal error of ABM03 on the PCB. Confirm correct grounding and absence of spikes; if not recovered, replace the PCB. |
| F66 | Control board anomaly (internal controller error) | Internal fault of the PCB controller (e.g., ABM03/DBM). Check grounding and power supply; if the error persists, replace the PCB/controller. |
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 38310783 PCB.
- Catalogue reference
- 38310783
- Brand
- Ferroli
- Type of part
- PCBs (control boards)
- Units in stock
- 2 units
- 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.
- Code printed on the PCB
- PCB-4L 04
Frequently asked questions about the PCB 38310783
What fault does changing this PCB in the Ferroli Peisa resolve?
Is this PCB suitable for any Ferroli Peisa boiler?
