
Air Pressure Switch Boiler MC FF - Ref. 605.99434
The air pressure switch checks the pressure in the MC FF boiler, ensuring that the system operates correctly. If it fails, you will notice that the boiler does not start or gets locked, even if the actual pressure is adequate. This component is compatible with models from the CALYDRA, ELEXIA, HYXIA, NECTRA ranges, and of course, the MC FF. The manufacturer's reference is 605.99434. It is recommended to replace it if you experience starting issues or operational lockouts.
VAT included
Consult via WhatsAppChaffoteaux boilers compatible with reference 60081725-01 60081725
Pressure switch with reference 60081725-01 60081725. 13 confirmed compatibilities: 2.23 and 2.28.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Chaffoteaux 2.23 | CALYDRA | Contrasted |
| Chaffoteaux 2.28 | CALYDRA | Contrasted |
| Chaffoteaux ELEXIA | ELEXIA | Contrasted |
| Chaffoteaux II | ELEXIA | Contrasted |
| Chaffoteaux HYXIA | HYXIA | Contrasted |
| Chaffoteaux FF | MC | Contrasted |
| Chaffoteaux 1.23 | NECTRA | Contrasted |
| Chaffoteaux 2.23 | NECTRA | Contrasted |
| Chaffoteaux 2.28 | NECTRA | Contrasted |
| Chaffoteaux 3.23 | NECTRA | Contrasted |
| Chaffoteaux C 2.23 | NECTRA | Contrasted |
| Chaffoteaux TOP 2.23 | NECTRA | Contrasted |
| Chaffoteaux TOP 3.23 | NECTRA | 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. 60081725-01 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 60081725-01 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 60081725-01 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 does not ignite and remains in indefinite standby, without the burner starting.
Cause: The pressure switch does not close the air safety contact, and the control unit does not give the ignition command.
Check that the fan starts and spins freely, without any rubbing or strange noise, before replacing the pressure switch.
- 02
The fan operates normally, but the ignition cycle does not progress.
Cause: Without the pressure switch signal confirming air pressure, the control unit remains stopped at that phase for safety.
Check that the pressure switch connection tubes do not have accumulated condensation and are not pinched.
- 03
The startup faults come and go, they don't always occur.
Cause: A pressure switch that starts to fail can give an irregular signal depending on how the pressure varies with each start-up.
Record if the fault occurs more often when the boiler is cold or after extensive use, as this helps narrow down whether it's the pressure switch or another cause.
- 04
After cleaning the flue, the boiler is still locking out the same way.
Cause: If the obstruction no longer exists and the fault persists, the suspicion focuses on the pressure switch itself.
With the duct already checked and cleaned, measure the electrical continuity of the pressure switch before completely discarding it.
Fault codes Chaffoteaux that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 40-60-80 | Fan running and pressure switch at rest. | The air pressure switch (60081725-01) does not close even though the fan is running; check the continuity of the micro switch when starting, the condition of the flue tubes/siphon, and the pressure drop in the venturi. |
| 40-60-70 | Extraction inconsistency: fan stopped and the pressure switch does not return to OFF. | Air pressure switch stuck/closed with the fan stopped; check with a multimeter (pressure switch contacts), inspect pressure hoses and ensure there is no water/obstructions in the flue circuit. |
| E05 | Flue pressure switch anomaly. | The pressure switch does not switch (does not close/open) during start-up; measure the continuity of the pressure switch and the fan depression, and check the pressure intake tubes and the flue outlet. |
| 6 07 | Pressure switch ON Fan OFF. | Pressure switch contact closed with fan stopped (pressure switch stuck or bypassed); check with a multimeter and inspect tubes/condensates that may give a false signal. |
| 6 08 | Pressure switch OFF Fan ON. | The pressure switch does not close with the fan running (rigid diaphragm or obstruction in tubes/pressure chamber); check the extractor's depression and the continuity of the pressure switch during start-up. |
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 60081725-01 60081725
- Catalogue reference
- 60081725-01 60081725
- Brand
- Chaffoteaux
- 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.
- Component code
- 605.99434
- Set (opening/closing)
- 125/105 Pa
- Contact electric charge
- 1(0.5)A / 250V~
- Internal code
- 101033 6
- Batch code
- LXHEQR
- Manufacturing date (month/year)
- 11/00
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Chaffoteaux HYXIA manual (PDF)Document © Chaffoteaux, provided as a technical reference.












