PCB Control Baxi Roca R20F Ref. E960427J
When you turn on the hot water tap or activate the heating, the Baxi Roca Control PCB R20F is responsible for managing the ignition, burner modulation, and the boiler pump. If this part fails, you will notice that the boiler does not start, gets locked, or exhibits erratic operation. It is compatible with several models from the R series of Baxi Roca, such as the R 20/20 F, R 20 F, and R 20 AF, among others. It should be replaced when you experience these symptoms and the boiler does not operate correctly.
Baxi Roca boilers compatible with reference 122122200
PCB with reference 122122200. Seven confirmed compatibilities: R 20/20 F and R 20 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca R 20/20 F | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 20 F | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 20 AF | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 20 AFI | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 20/20 XF | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 20/20 T | Baxi Roca R series (forced draught gas) | Contrasted |
| Baxi Roca R 30/30 F | Baxi Roca R series (forced draught gas) | 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. 122122200 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 122122200. 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 122122200 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 is unresponsive, with no lights on.
Cause: The PCB controls everything; if the main chip fails, the boiler does not work.
First, check the main fuse and make sure that 230V is reaching the PCB.
- 02
The ignition sounds but the flame does not light and the boiler locks out.
Cause: The microprocessor manages the spark and the gas; if it fails, the process is interrupted.
Make sure that the ignition electrode has a good spark and is properly grounded before replacing the PCB.
- 03
The relays on the PCB click, but the pump or the fan do not turn.
Cause: A damaged relay can send the signal, but it does not activate the circuit to the actuator.
Measure with a multimeter if there is current in the corresponding connector when the relay is activated.
- 04
The transformer on the PCB is emitting a buzzing sound or is hotter than usual.
Cause: A faulty transformer can indicate a problem at another point in the circuit.
Let the boiler cool down and check if the buzzing occurs only when activating specific functions, such as the pump or the fan.
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 122122200
- Catalogue reference
- 122122200
- 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.
- Component code (silkscreen)
- E960427J
- Plan / secondary code
- 12.211.05A
- Additional marking on PCB
- AWK2 94V0 / CI ID
- Manufacturer of the main chip
- NEC JAPAN
- Transformer - brand
- Myrra
- Transformer - model
- 45080
- Transformer - primary voltage
- 115V / 115V
- Transformer - secondary voltage
- 10.5V/15VA + 10.5V/15VA
- Transformer - current
- 160mA (230VAC) / 315mA (115VAC), fuse 1.5A
- Transformer - operating temperature
- Ta 50°C
- Code on the reverse side of the PCB
- C989425G | 12.212.0?A (last digit uncertain)
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Baxi Roca R 20/20 F Manual (PDF)Document © Baxi Roca, provided as a technical reference.
Frequently asked questions about the PCB 122122200
What manufacturer is listed on the control board of the Baxi Roca R20F?
What code is engraved on the control board of the Baxi Roca R20/20F and R20F?
Does this PCB work for my Baxi Roca R30/30F boiler?
What transformer is installed on the control board of the Baxi Roca R20F?
What main chip does the PCB of the Roca boilers from the 20/20 series use?
Spare parts related to Baxi Roca Roca R series (forced draft gas)
