Air Pressure Switch Boiler Laura 30/30 F - 605.99512
Air pressure switch for Laura series boilers (20 and 30), with model code R-30/30 F. It regulates the air pressure in the combustion circuit and allows ignition only if the fan extracts correctly. It is replaced when the boiler does not start or indicates a ventilation fault. Component code 605.99512, switching pressure 246/226 Pa.
VAT included
Consult via WhatsAppBaxi Roca boilers compatible with reference 122460020
Pressure switch with reference 122460020. Nine verified compatibilities: Laura 20 AF and Laura 20 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Laura 20 AF | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 20 F | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 20/20 F | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 20/20 T | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 30 AF | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 30/30 F | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 35 AF | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura 35/35 F | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura Plus 28/28F | Baxi Roca Laura | 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. 122460020 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 122460020. 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 pressure switch 122460020 resolves.
The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not start and locks out just before igniting.
Cause: The pressure switch does not detect the air correctly, and the control board blocks the opening of the gas for safety reasons.
Check that the pipes connecting to the fan are not blocked, loose, or filled with water before replacing the part.
- 02
The display indicates a ventilation fault or lack of draft in the flue.
Cause: This warning appears when the pressure switch does not detect the minimum pressure required for the control board to turn on.
Check the flue gas outlet and the air intake to see if anything is blocking them from the outside.
- 03
The fan works, but the burner does not ignite.
Cause: The pressure switch contact may remain open due to wear, even though the fan is working properly.
Check if the fan sounds and spins as usual when it is running before considering that the part is faulty.
- 04
The boiler sometimes ignites but turns off after a few seconds, intermittently.
Cause: A contact that changes irregularly due to mechanical wear causes blockages that do not always repeat in the same way.
Note when the fault occurs: if it coincides with changes in flue (wind, open doors), first check the flue duct.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 19 | The air pressure switch indicates pressure before the boiler is turned on. | The air pressure switch is closed before the boiler starts. This may be because it is stuck or because the tubes are reversed or blocked. The PCB then detects a pressure greater than zero. To check this, measure if there is continuity in the pressure switch when there is no demand and inspect or vacuum the venturi tubes to see if it changes state. |
| 20 | The air pressure switch does not detect sufficient pressure during operation. | The air pressure switch does not close when the boiler is operating. This may be due to lack of draft, insufficient pressure, water in the pipes, or a defect in the pressure switch itself. Check that the fan starts and measure the continuity of the pressure switch by applying vacuum to the tube leading to the venturi. Also, check the pipes and connections to see if they are crossed. |
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.
Datasheet for the Baxi Roca 122460020 pressure switch
- Catalogue reference
- 122460020
- Brand
- Baxi Roca
- Type of part
- Pressure switches
- Units in stock
- 5 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
- 605.99512
- Switching pressure (open/close)
- 246/226 Pa
- Electrical characteristics of the contact
- 1(0.5) A / 250 V~
- Batch code
- BBFADC
- Partial part reference
- 16.105.05 (partially covered by adhesive, may continue)
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Baxi Roca Laura 20/20 F Manual (PDF)Document © Baxi Roca, provided as a technical reference.
Frequently asked questions about the pressure switch 122460020
Is this pressure switch suitable for a Laura 20 AF or only for the 30/30 F?
Which code should I check on the label of my pressure switch for the Laura 30/30 F?
When should the pressure switch of the Laura 30/30 F be replaced?
At what pressure does the pressure switch of the Laura 30/30 F switch?
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