Flow switch Baxi Roca Laura 20 20 F Ref. 122280010
When you open the hot water tap, the Baxi Roca Laura 20 20 F (Ref. 122280010) flow switch detects the water flow and activates the ignition to heat the water. If this part fails, you will notice that no hot water comes out even with the tap open. It is installed in Baxi Roca boilers, including models such as Laura 20/20 F and Laura RSI 20/20, among others. It is advisable to replace the flow switch if you experience fault code 06: Overtemperature Clixon open or if you do not get hot water when opening the tap.
Baxi Roca boilers compatible with reference 122280010
Flow meter with reference 122280010. Two confirmed compatibilities: Laura 20/20 F and Laura RSI 20/20.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Baxi Roca Laura 20/20 F | Baxi Roca Laura | Contrasted |
| Baxi Roca Laura RSI 20/20 | 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. 122280010 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 122280010. 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 flow meter 122280010 resolves.
The flow meter detects the passage of water to activate the domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite when the hot water tap is opened; it just waits without doing anything.
Cause: The paddle sensor does not detect the water flow, so the boiler does not allow the burner to ignite.
Check that the sensor connector is properly fitted and free of corrosion; this is a common fault before the part is actually defective.
- 02
The ignition of the domestic hot water is intermittent, sometimes it turns on and sometimes it doesn't with the same tap.
Cause: The internal palette may have a poor electrical contact, even if the mechanical rotation is correct.
With the boiler in demand for domestic hot water, gently move the sensor cable; if the fault appears or disappears when moving it, it indicates a poor connection.
- 03
The boiler displays a warning or lockout due to insufficient flow even though the water circulates normally through the system.
Cause: The paddle may be stuck due to lime or small debris that prevents it from rotating freely inside the sensor.
If you can access the sensor, check that the paddle spins freely by forcing a little water through the body before replacing it.
- 04
The fault has been worsening over time: it used to take a while to detect the flow, and now it doesn't detect it at all.
Cause: The progressive wear of the shaft or the accumulation of scale on the sensor gradually slows down the paddle until it stops generating a signal.
If you notice that the water was taking longer and longer to come out hot before failing completely, it's the typical pattern of a sticking paddle sensor.
Fault codes for Baxi Roca that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 06 | Overtemperature clixon open. | The flow switch/flow meter (flow detector) can remain activated and send a false DHW demand; the pump does not circulate and the water in the heat exchanger overheats, triggering the thermal cut-out. Verify by observing a permanent DHW demand without opening the tap and measuring the detector's signal (pulses/continuity) or replacing it for cross-testing. |
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 Baxi Roca 122280010 flow meter
- Catalogue reference
- 122280010
- Brand
- Baxi Roca
- Type of part
- Flow detectors
- Units in stock
- 2 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
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 flow meter 122280010
Is this flow switch suitable for the Baxi Roca Laura 20/20 F boiler?
What other boilers are compatible with this pressure switch?
What is the function of the Roca Laura 20 20 F flow switch (Ref. FRL2020F)?
What material is the Roca Laura 20 20 F pressure switch made of?
What fault code is documented for this pressure switch?
How can I identify the Roca Laura 20 20 F flow switch?
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