PCB Sime Format Low NOx 25 BF Ref. 6301470
The Sime Format Low NOx 25 BF PCB (control board) Ref. 6301470 controls the ignition, burner modulation, pump, and safety features of the boiler. When it fails, the boiler may not start, lock out, or exhibit erratic behavior. Users may experience issues such as the fault code F 04, which indicates that the flame is not detected at the end of the ignition, or fault code F 09, which signals a configuration anomaly. This board is compatible with the Format Low NOx 25 BF and Format Low NOx 30 BF models, among others. It is recommended to replace it when these symptoms or fault codes occur.
VAT included
Consult via WhatsAppSime boilers compatible with reference 6301470
PCB with reference 6301470. Two confirmed compatibilities: Format Low NOx 25 BF and Format Low NOx 30 BF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Sime Format Low NOx 25 BF | Format Low NOx | Contrasted |
| Sime Format Low NOx 30 BF | Format Low NOx | 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 the part number 6301470 is the one 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 6301470. If it is not visible, do not identify the part by 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 6301470 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 shows no signs: no display, no lights, no noise when trying to start.
Cause: The PCB controls all the internal power supply of the boiler; if it fails, no current reaches any component, even if the main supply is fine.
Before replacing it, check the main fuse of the boiler and ensure that the differential switch of the house has not tripped; a damaged PCB is not the only cause of a total blackout.
- 02
A fixed or frequently recurring fault code appears on the screen.
Cause: The PCB blocks the unit for safety when it receives an incorrect reading, even though the actual fault may be in an external sensor and not in itself.
Note the exact code and consult the manual before replacing the PCB; many codes indicate a problem with an external component, not with the PCB.
- 03
The thermostat or the remote control cannot get the boiler to start.
Cause: The part of the PCB that receives the ignition command may not be functioning, even though the rest of the equipment is operational.
Check the thermostat batteries and ensure that the wiring of the terminal block is securely tightened to the PCB before considering it faulty.
- 04
The boiler turns off by itself intermittently, without a clear pattern.
Cause: A soldering fault or a heat-sensitive component on the PCB can cause random interruptions in operation.
Check if the shutdown coincides with the boiler being on for a while or with knocks or vibrations; this suggests a problem with the PCB more than with another component.
Fault codes for Sime that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F 04 | Flame not detected at the end of ignition or parasitic flame reading. | The PCB 6301470 manages ionization detection; if its circuit loses "visibility" of the flame or misinterprets it, it triggers F 04. Check ionization microamperage, ground/electrode, and continuity to the PCB; if the signal is correct and the fault persists, the detection circuit of the PCB is damaged. |
| F 09 | Sealed/open configuration anomaly. | The PCB reads this configuration through the X15 card connector; incorrect wiring/incoherent reading in X15 causes F 09. Check pinout and continuity of the harness in X15 and the coherence of the configuration; if correct and persists, check the reading input/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 Sime 6301470 PCB.
- Catalogue reference
- 6301470
- Brand
- Sime
- 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.
- voltage
- 12V
- This record shares the same catalog reference (6301470) as another record with a different SKU (CPECSFL0501, different product_id). It could be two duplicate records for the same part: it is advisable to check this before selling both separately.
Frequently asked questions about the PCB 6301470
Does this PCB fit the Sime Format Low NOx 25 BF?
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