PCB Baxi Roca Victoria 20/20 - Neobit 20/20

Baxi Roca boilers compatible with reference 122126440

PCB with reference 122126440. Three confirmed compatibilities: Victoria 20/20 F and Victoria 20/20 T.

Proven compatibility

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. 122126440 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.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 122126440. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms and faults that the PCB 122126440 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 light up any indicators or the display, as if it is not receiving power.

  Cause: The PCB distributes power to the rest of the components; if it fails, nothing turns on.

  Before replacing it, check the 3.15A fuse printed on the PCB itself: if it's blown, it might be enough to just replace it.

• 02

  A different fault code appears on the display each time you try to start it.

  Cause: The control unit interprets the signals from the sensors and triggers alerts that do not always point to itself.

  Note the exact code and compare it with the Victoria/Neobit manual before assuming it's the PCB: several codes point to the NTC sensor or the pressure switch.

• 03

  The boiler starts, runs for a while, and then stops on its own without the heat demand being completed.

  Cause: A fault in the electronics causes safety shutdowns or resets that do not depend on the thermostat's demand.

  Check for an overtemperature lockout or low water pressure before considering the PCB as faulty.

• 04

  The thermostat is calling for heat, but the boiler is not responding, even though it has power.

  Cause: If the internal communication bus of the PCB fails, the thermostat's command does not reach the burner.

  Check the wiring and connectors of the thermostat on the PCB itself before replacing it: a loose connector gives the same symptom.

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 122126440

Catalogue reference

122126440

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.

Model on PCB

VICTORIA FF

Fuse

3.15A

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

• Baxi Roca Neobit 20/20 F Manual (PDF)Document © Baxi Roca, provided as a technical reference.