PCB Baxi Roca Neonox 20/24F Ref. 125569583
The Baxi Roca Neonox 20/24F PCB is the component that controls the ignition, burner modulation, pump, and safety features of the boiler. If it malfunctions, the boiler may fail to start, lock out, or operate erratically. Users may notice issues such as fault codes E52, E97, E98, or E99. This board is compatible with models from the Neonox range, such as the Neonox 20/24 F, among others. It is recommended to replace it when these symptoms or fault codes are detected.
Baxi Roca boilers compatible with reference 125569583
PCB with reference 125569583. Three confirmed compatibilities: Neonox 20/24 F and Novanox 24/24 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Neonox 20/24 F | Neonox | Contrasted |
| Baxi Roca Novanox 24/24 F | Novanox | Contrasted |
| Baxi Roca Novanox 28/28 F | Novanox | 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 reference 125569583 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 125569583. 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 125569583 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 screen is black or not displaying anything, but the boiler is still heating.
Cause: This PCB is only for the display and controls; the power board, which is a different part, can continue to operate on its own.
Check if hot water is coming out or if the radiators are heating up even if the display is off: if so, the problem is with the display, not with the power.
- 02
The buttons are unresponsive, and it is not possible to change the temperature or the mode.
Cause: The physical controls depend on the microcontroller of this PCB; if it gets locked, it stops detecting the presses.
Disconnect the power for 30 seconds and reconnect: if the buttons still do not respond, the problem is with the interface.
- 03
The screen turns on but remains frozen with a fixed or randomly blinking icon.
Cause: The microcontroller on the interface PCB is freezing and not refreshing the display correctly.
Note which icon remains fixed and when it appears: this helps to confirm that it is a user interface lock and not a real fault of the boiler.
- 04
The boiler is working, but no fault code is displayed even though something is wrong.
Cause: If the interface fails, even though the power PCB detects a problem, it cannot be displayed on the screen.
Check the flat cable or the connector that connects the interface board to the power board before discarding the interface.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| E52 | Internal fault in the PCB | The PCB has an internal problem that may be related to hardware or signal management. Check that it is receiving the correct 230 V and 5/12 V, review the connections and the grounds. If everything is correct and it continues to show a fault after resetting, try replacing the board with another one of the same type, ref. 125569583. |
| E97 | Incorrect supply frequency on the PCB | The PCB is incorrectly configured for a frequency of 50/60 Hz, possibly after a PCB change or due to loading incorrect parameters. Enter the service menu and make sure it is set to 50 Hz, which is the correct setting for Spain. If not, reprogram or adjust the PCB correctly for your model. |
| E98 | Internal fault in the PCB | The PCB has an internal problem, it could be related to the microcontroller or internal communication. Check the voltages and the wiring. If everything else is fine and the fault returns after resetting, try temporarily replacing the PCB or reprogramming it. |
| E99 | Internal critical fault on the PCB | The PCB has a serious internal fault, such as a communication issue between the microcontrollers. Check the power supplies and the internal bus. If you don't find any external problems, try replacing the board with another one, ref. 125569583, to confirm. |
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 Baxi Roca 125569583 PCB.
- Catalogue reference
- 125569583
- Brand
- Baxi Roca
- Type of part
- PCBs (control boards)
- Units in stock
- 0 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.
- voltage/frequency
- 230V / 50Hz
- CE code
- Reg.CE 51BN2289
- Ta/Ts
- Ta:2 Ts:10 (ambient/storage temperature range)
- relay K3
- OMRON G5NB-1A-E 24VDC, 5A 250VAC
- relay K4
- OMRON G5Q-1 DC24V, 5A 30VDC / 10A 250VAC
- main relay
- M ALA2PF24 E02, coil 24V, 4/6.5A 250V~ (TUV/VDE)
- network filter
- SCHAFFNER RN212-1,2/02, 1,2A/250V
- varistor VDR1
- 203YR18 8 X
Frequently asked questions about the PCB 125569583
Does this PCB from the Baxi Roca Neonox 20/24F also include the power board?
Does this PCB fit the Baxi Roca Novanox 28/28F?
What components does the Neonox interface board have to protect itself from the electrical network?
Spare parts related to Baxi Roca Novanox
