Chaffoteaux Electronic Module Ref. 030004256707
Chaffoteaux presents the Electronic Module Ref. 030004256707, a control PCB that regulates the ignition, burner modulation, pump, and safety features of the boiler. When this part fails, the boiler may not start, become locked, or operate erratically, causing issues with the heating supply. This module is compatible with boilers from the Chaffoteaux brand. Its replacement is necessary when errors such as 3 03, 3 05, 3 06, or 3 07 occur, indicating problems with the main board.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 030004256707
PCB with reference 030004256707. A proven compatibility: Chaffoteaux.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Chaffoteaux | Chaffoteaux | 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. 030004256707 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 030004256707. 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 030004256707 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: there are no lights, it makes no noise, it does not respond to anything.
Cause: The PCB includes the power transformer; if it fails, no current reaches any control.
Check the fuse on the PCB and verify that the transformer shows no signs of burning (smell, dark marks) before replacing it.
- 02
A click is heard when trying to turn on, but the boiler does not start the fan or ignition.
Cause: The microcontroller activates the start relay but does not complete the ignition.
Check that the fan spins freely by hand before declaring the PCB faulty: a seized fan can cause the same issue.
- 03
An error code appears that is not in the manual, or it changes when resetting the boiler.
Cause: If the memory (EPROM) or the microcontroller is damaged, the readings from the sensors are misinterpreted.
Note the exact fault code and perform a complete reset before changing the PCB: if the code changes, it points more towards the electronics than a sensor.
- 04
The boiler turns off by itself intermittently, without a clear pattern.
Cause: A soldering fault or a component that overheats on the PCB causes interruptions that do not always alert in the same way.
Check if the cut coincides with the start of any component (pump, fan) before replacing the entire PCB.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 3 03 | Main PCB fault | The main electronic module (PCB) does not pass its internal self-diagnosis; check supply voltages 230 Vac/5–12 Vdc, fuses, and visible damage on the board. If the issue persists with peripherals disconnected, replace and parameterize the board ref. 030004256707. |
| 3 05 | Main PCB fault | Self-diagnosis detects a fault in the internal circuits of the PCB (outputs/relays/logic). Check 5–12 Vdc rails and outputs without load; if the error persists when isolating peripherals, replace and parameterize the board 030004256707. |
| 3 06 | Main PCB fault | Internal anomaly of the PCB (e.g., watchdog or power supply). Check stabilized voltages, fuse, and solder joints; if after resets and disconnection of loads the fault persists, replace/parameterize the PCB 030004256707. |
| 3 07 | Main PCB fault | Additional internal fault detected by the main board's self-diagnosis. Confirm power supplies/damage to the PCB and rule out shorts in peripherals; if not resolved, replace and configure the 030004256707. |
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 Chaffoteaux PCB 030004256707.
- Catalogue reference
- 030004256707
- Brand
- Chaffoteaux
- 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
Data read on the part and in the manufacturer's documentation
What we have not been able to verify does not appear here.
- Visible components on the PCB
- label with barcode, EPROM, transformer
Spare parts related to Chaffoteaux Chaffoteaux
