
FIME Air Pressure Switch For Baxi Roca Sara 24/24F - Ref. 122163040
Air pressure switch manufactured by FIME, code 605.99691, for Baxi Roca boilers from the Nora/Sara range. It is a mechanical switch that operates at 130/110 Pa, closing or opening the electrical contact (1(0.5)A/250V~) that allows the electronics to authorize the burner ignition. It is replaced when the contact does not switch and the boiler does not start or gets blocked.
VAT included
Consult via WhatsAppBaxi Roca boilers compatible with reference 122163040
Pressure switch with reference 122163040. Five confirmed compatibilities: Sara 24/24 F and Nora 24/24 F.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Sara 24/24 F | Baxi Roca Sara | Contrasted |
| Baxi Roca Nora 24/24 F | Baxi Roca Nora | Contrasted |
| Baxi Roca Nora 28/28 F | Baxi Roca Nora | Contrasted |
| Baxi Roca Nora 24 F | Baxi Roca Nora | Contrasted |
| Baxi Roca Nora 24 AF | Baxi Roca Nora | 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. 122163040 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 122163040. 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 122163040 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 as soon as you try to ignite it, without reaching a flame.
Cause: The pressure switch does not close the contact, so the control board does not receive authorization and cuts off the attempt.
Listen for the click of the pressure switch when starting the fan; if you don't hear it, check the wiring before the part.
- 02
The display shows a fault code for the air pressure switch.
Cause: If the contact does not close at the correct pressure, the electronics think there is insufficient draft and it locks out.
Check the silicone tubes connecting the pressure switch to the fan; a leak or disconnection prevents pressure from reaching.
- 03
The fault comes and goes: sometimes it ignites and other times it locks up.
Cause: A worn contact or one with oxidized points can operate intermittently due to vibration or temperature.
Gently tap the pressure switch box while someone observes if the fault recurs; this helps to identify a fatigued contact.
- 04
The unit has been inactive since the summer and now it won't start.
Cause: After months of inactivity, it is common for dust or moisture to accumulate in the pipes, affecting the pressure switch.
Before changing it, blow through the connection pipes and make sure there is no condensed water in them.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 40-50-80-90 | Waiting for the pressure switch to open | The air pressure switch remains closed at rest (contacts stuck or false pressure/vacuum due to inverted or obstructed tubes/venturi), so the PCB 'waits' for it to open; check that there is no continuity at rest and that the silicone tubes and extractor connections are clean and correctly connected. |
| 60-80-90 | Waiting for the pressure switch to close | When the fan starts, the pressure switch does not close (fatigued diaphragm/faulty microswitch or lack of depression due to tubes/venturi), causing the lockout; check that there is continuity in the pressure switch with the fan running and verify the condition/order of tubes and connections to the extractor. |
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 pressure switch 122163040
- Catalogue reference
- 122163040
- Brand
- Baxi Roca
- Type of part
- Pressure switches
- Units in stock
- 1 unit
- 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
- FIME
- Manufacturer code
- 605.99691
- Switching pressure
- 130/110 Pa
- Electrical classification
- 1(0.5)A/250V~
- Batch/model code
- 16.538.00












