
Chaffoteaux Calydra 28 FF Air Pressure Switch Ref. 60081725
Air pressure switch (also known as flue or differential pressure switch) for Chaffoteaux boilers from the Calydra, Britony, Elexia, Hyxia, and Nectra ranges. It checks that the extractor generates the necessary vacuum before allowing ignition; if the pressure is not correct, it blocks the start-up. The metal casing reads the marking 01 13A / 8B.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 60081725
Pressure switch with reference 60081725. Ten confirmed compatibilities: Calydra 23 FF and Calydra 28 FF.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux Calydra 23 FF | Calydra | Contrasted |
| Chaffoteaux Calydra 28 FF | Calydra | Contrasted |
| Chaffoteaux Calydra Comfort 28 FF | Calydra | Contrasted |
| Chaffoteaux Nectra 1.23 FF | Nectra | Contrasted |
| Chaffoteaux Nectra 2.23 FF | Nectra | Contrasted |
| Chaffoteaux Nectra 2.28 FF | Nectra | Contrasted |
| Chaffoteaux Nectra 3.23 FF | Nectra | Contrasted |
| Chaffoteaux Nectra Top 2.23 FF | Nectra Top | Contrasted |
| Chaffoteaux Nectra Top 2.28 FF | Nectra Top | Contrasted |
| Chaffoteaux Nectra Top 3.23 FF | Nectra Top | 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. 60081725 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 60081725. 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 60081725 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 turns on, you can hear the start-up attempt, and it shuts off after a few seconds.
Cause: The pressure switch does not detect sufficient depression from the fan, and the control unit cuts off the gas for safety.
Check that the silicone tubes of the pressure switch are not blocked, bent, or disconnected before replacing it.
- 02
The boiler locks out with a fault related to flue gas evacuation or the fan.
Cause: The pressure switch interprets that there is not enough draft in the duct and does not allow the burner to ignite.
Check that the flue outlet is not obstructed by snow, leaves, or a nest before confirming the part is good.
- 03
You can hear the fan start and stop immediately, without the flame igniting.
Cause: The pressure switch does not close the electrical contact even though the fan is running, and the control unit does not authorize ignition.
Listen to see if the extractor reaches its normal speed; if it sounds weak, the problem might be with the fan and not the pressure switch.
- 04
The fault occurs mainly during strong winds or bad weather.
Cause: External conditions affect the draft that the fan needs to generate, and the pressure switch reacts by blocking the ignition.
Note if the fault coincides with windy days; if so, check the outlet terminal first before replacing the pressure switch.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 21 | Absence of extraction flow (FF). | The air pressure switch does not close or opens during operation, so the PCB does not confirm the depression in the flue circuit; check with a differential manometer/ohmmeter that it switches at the threshold value (~105 Pa) and inspect the sampling tubes. |
| 22 | Flue extraction detection device fault (FF). | The air pressure switch remains in the 'working' position with the extractor stopped (contact stuck or bridged), which the PCB detects as an inconsistency; check the continuity of the pressure switch with the fan off and rule out any derivations in the tubes/wiring. |
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 Chaffoteaux pressure switch 60081725
- Catalogue reference
- 60081725
- Brand
- Chaffoteaux
- Type of part
- Pressure switches
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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.
- Marking on the metal casing
- 01 13A / 8B
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Chaffoteaux Nectra 2.28 FF Manual (PDF)Document © Chaffoteaux, provided as a technical reference.












