Huba Control Air Pressure Switch For Baxi Roca Laura 30 AF - Ref. 122460020
Huba Control air pressure switch (code 401.83000) for Baxi Roca boilers from the Laura range. It is an analog transducer: it measures differential pressure from 0 to +3 mbar and delivers a voltage signal of 0.8 to 4.5V to the control electronics, powered at 12VDC. It is replaced when the central unit does not receive the correct pressure signal from the extractor and the boiler locks out.
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 locks out with a fault related to the pressure switch or fan, sometimes even just after starting.
Cause: The pressure switch sends a signal to the control board that is proportional to the pressure; if this signal is not within the correct range, the electronics assume that the fan is not working properly.
Check that the extractor spins without any strange noises and reaches its normal speed: if the fan is fine, check the pressure intake pipes before touching the pressure switch.
- 02
The control board does not receive the expected pressure signal from the fan, even though it seems to be working.
Cause: If the pressure take-off circuit has any leaks, the signal will not rise sufficiently.
Check that the silicone tubes are properly connected to their fittings and free of cracks or condensed water inside.
- 03
The boiler stops during the pre-purge phase, before attempting to supply gas.
Cause: The control unit needs the correct pressure signal during that phase; if it does not arrive on time, it cuts the cycle for safety.
Check if the fault occurs at the same moment in the ignition cycle: this helps to differentiate an electronic problem from one related to the pressure switch.
- 04
The boiler starts up well sometimes and other times it doesn't, without a clear pattern.
Cause: The wear of the analog transducer can cause the signal to intermittently go out of the expected range, not suddenly.
If the fault is not constant and varies with the ambient temperature, check the electrical connections and the pipes first before the pressure switch itself.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 03 | Lack of pressure | The boiler indicates that there is a lack of pressure in the heating circuit. This may be due to a leak in the system or that it has not been filled properly. Check the pressure gauge and ensure that the pressure is within the recommended levels. |
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
- 4 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.
- Manufacturer
- Huba Control
- Factory code
- 401.83000
- Pressure range
- 0...+3 mbar
- Maximum pressure
- 25 mbar
- Power supply
- 12VDC (10.4-18VDC)
- Output
- 0.8-4.5V RL=15kOhm
- The '05-04' printed is likely the week/year manufacturing code, not a part reference.
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 Huba Control pressure switch suitable for the Baxi Roca Laura 20 AF GN as well as the Laura 30 AF?
Is the pressure switch on/off or does it provide a proportional signal?
What voltage does this pressure switch for the Laura 30 AF operate at?
What fault indicates that this pressure switch needs to be replaced in the Laura?
What pressure range does this Huba Control pressure switch measure?
Spare parts related to Baxi Roca Laura
