
PCB Baxi Roca Vega 24 Aifm Ref. 122628454
If your boiler does not start, locks out, or exhibits erratic behavior, a technical diagnosis must confirm if you need the PCB (control board) Baxi Roca Vega 24 Aifm Ref. 122628454. This part, manufactured by Finder, acts as the brain of the boiler, controlling the ignition, burner modulation, pump, and safety features. When it fails, you may experience faults such as E98 or E99, which indicate an internal problem with the board. It is compatible with models from the Baxi Roca Vega AIM/AIFM series, such as the Vega 20 AIM and the Vega 24 AIFM, among others. A technician must confirm through diagnosis if it needs to be replaced when the mentioned symptoms are detected.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- 122628454
- Warranty
- 1 year
Baxi Roca boilers compatible with reference 122628454
PCB with reference 122628454. Four confirmed compatibilities: Vega 20 AIM and Vega 20 AIFM.
Verified compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Vega 20 AIM | Baxi Roca Vega (AIM/AIFM series, not Plus) | Verified |
| Baxi Roca Vega 20 AIFM | Baxi Roca Vega (AIM/AIFM series, not Plus) | Verified |
| Baxi Roca Vega 24 AIM | Baxi Roca Vega (AIM/AIFM series, not Plus) | Verified |
| Baxi Roca Vega 24 AIFM | Baxi Roca Vega (AIM/AIFM series, not Plus) | Verified |
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 122628454 is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 122628454. 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 that require diagnosis on the PCB 122628454
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 won't start and there are no lights on.
Cause: The PCB is not supplying power to the rest of the circuit, usually due to an internal fault.
Check the 230V power supply to the boiler and verify that the differential has not tripped before inspecting the PCB.
- 02
The pump or the burner keeps running even though the boiler should no longer be calling for heat.
Cause: One of the relays on the PCB gets stuck and does not cut the circuit it controls.
Listen for a clicking sound when starting and stopping the demand; if the relay doesn't make that click, it could be a problem with the PCB.
- 03
The control does not change anything no matter how much you touch it, the boiler operates on its own.
Cause: The microcontroller does not process the commands from the thermostat or the control panel.
Check that the control cable is properly connected to the terminal block before replacing the PCB.
- 04
A fault code keeps recurring every short while.
Cause: The PCB detects a recurring internal fault and locks the boiler for safety.
Note the code and when it appears, upon starting, during operation, or when stopping, to confirm that the pattern indicates a fault in the PCB.
Fault codes Roca that require diagnosis
| Code | Fault | Technical checks |
|---|---|---|
| E98 | Internal PCB fault | The PCB (control board) has an internal fault (memory/CPU or parameterization after replacement), causing the self-diagnosis to lock the unit; check power supply/polarity and grounding, connectors, and ensure the board parameters are correctly configured; if it persists after reset, replace the board ref. 122628454. |
| E99 | Internal PCB fault | Internal fault of the PCB (common due to communication error between microcontrollers/firmware); check power supply L/N/PE, connectors, and reset; if the fault reappears after verification and reconfiguration, it must be confirmed through diagnosis whether to replace the board with reference 122628454. |
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 122628454
- Catalogue reference
- 122628454
- Uniclima internal SKU
- PERV24AIFM
- Brand
- Roca
- Type of part
- PCBs (control boards)
- Units in stock
- 0 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- PCB code
- M001A
- Main chip (DIP)
- BLR23
- Manufacturer of the relays
- Finder
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Baxi Roca Vega 24 AIFM Manual (PDF) Document © Baxi Roca, provided as a technical reference.


