
Honeywell Air Pressure Switch C6065F1241:2 For Ferroli Domina Oasi F30 E - Ref. 39805631
Honeywell air pressure switch, code C6065F1241:2, also confirmed by external sources. It is used in Ferroli boilers to detect the air pressure generated by the fan and to allow or block the burner ignition based on that reading, set at 1.65 mbar with a maximum of 6 mbar. The metal bracket is stamped with 'Yamatake'. It is replaced when it does not switch and the boiler does not ignite or remains locked in pre-ventilation.
VAT included
Consult via WhatsAppFerroli boilers compatible with reference 39805631
Pressure switch with reference 39805631. Five confirmed compatibilities: Domina F24E and Domina F30E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli Domina F24E | Domina | Contrasted |
| Ferroli Domina F30E | Domina | Contrasted |
| Ferroli Domitop DGT F30E | Domitop | Contrasted |
| Ferroli New Elite F24 | New Elite | Contrasted |
| Ferroli Domicompact F24 | Domicompact | 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. 39805631 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 39805631. 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 39805631 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 remains in pre-ventilation, with the fan running, and never moves on to ignite the burner.
Cause: The pressure switch does not close the contact even though there is sufficient air pressure, preventing the control board from opening the gas valve.
Time how long the pre-ventilation lasts before the lockout: if it always cuts off at the same point, it points more to the pressure switch than to a random fault.
- 02
Intermittent fault: some days it ignites without any problem and other days it gets blocked.
Cause: A worn internal contact switches irregularly in response to small pressure variations or vibrations.
Check that the pressure switch is properly secured and does not vibrate with the extractor running; a loose attachment can also cause intermittent faults.
- 03
Ignition lock right after a cleaning or inspection of the boiler
Cause: It is common for the pressure take-off pipes to be improperly connected or bent during maintenance.
Check that the silicone tubes return to their original position after any manipulation before considering replacing the pressure switch.
- 04
The display indicates a fault with the air pressure switch, but the flue seems correct at first glance.
Cause: The pressure switch itself, its wiring, or the connector to the PCB can fail without the problem being in the actual flue.
Check the electrical continuity of the pressure switch wiring with a multimeter before replacing it.
Fault codes for Ferroli that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F4 | Operation of the air pressure switch. | The air pressure switch remains closed when it should open (stuck contact or tubes/venturi improperly connected/blocked). Check with a multimeter that it opens when the fan stops and inspect pressure tubes and air/smoke ducts. |
| F5 | Operation of the air pressure switch. | The pressure switch does not close within the time (~55 s) after activating the fan due to lack of depression/draught or a defective pressure switch. Check closure with a multimeter when starting the fan and inspect the venturi, pressure tubes, and possible obstruction in air/smoke. |
| F6 | Operation of the air pressure switch. | The pressure switch contact remains closed after several start-up attempts, indicating a stuck APS or reversed connection. Measure opening/closing with a multimeter and check the correct connection of the tubes to the pressure switch and the operation of the fan. |
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 Ferroli pressure switch 39805631
- Catalogue reference
- 39805631
- Brand
- Ferroli
- Type of part
- Pressure switches
- Units in stock
- 5 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.
- Voltage
- 250V~
- Contact current
- 1.5(0.5) A
- Setpoint
- 1.65 mbar
- Maximum pressure
- 6 mbar
- CE marking
- CE-0063AP3085/1
- Component code
- Honeywell C6065F1241:2












