
Baxi Roca Electronic Control Board Display 15 20 Ref. 122120830
Baxi Roca R-15/20 features the Electronic Control Panel Display 15 20 with reference 122120830. This control PCB is responsible for managing the ignition, burner modulation, pump, and safety features of the boiler. When it experiences faults, you will notice that the boiler does not start, gets locked, or behaves erratically. It is installed in boilers from the Baxi Roca R-15/20 range, among others. You should replace it when you experience these symptoms of malfunction.
VAT included
Consult via WhatsAppBaxi Roca boilers compatible with reference 122120830
PCB with reference 122120830. A proven compatibility: R-15/20.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca R-15/20 | Baxi Roca R-15/20 | 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. 122120830 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 122120830. 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 122120830 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 does not turn on and remains completely off.
Cause: The display and control module is not receiving power from the main PCB due to a fault in the connector or in the module itself.
Check the connector that links this PCB with the main PCB, ensuring it is not loose, bent, or corroded before replacing it.
- 02
The display is lit but does not show any data or icons.
Cause: The display circuit of this control panel stops refreshing the information even though it remains powered.
Check if the boiler is still heating normally; if it operates but doesn't display information on the screen, the fault is in this module.
- 03
The controls (buttons or dial) do not respond when pressed or turned.
Cause: This component integrates the display and controls on the same PCB, so a fault here also affects the manual control of the boiler.
Try resetting the boiler by cutting the main power for a few seconds before considering the controls faulty.
- 04
The display and controls work intermittently: sometimes they respond and sometimes they don't.
Cause: A poor contact in the connector of this PCB causes intermittent faults in both reading and control.
Disconnect and reconnect the PCB connector; if the fault depends on moving the cable, it's a connection issue, not a problem with the part.
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 PCB 122120830
- Catalogue reference
- 122120830
- Brand
- Baxi Roca
- Type of part
- PCBs (control boards)
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days


