Ferroli F 24 Water Pressure Switch

Ferroli boilers compatible with reference 39818260

Pressure switch with reference 39818260. 13 confirmed compatibilities: DOMIPROJECT F 24 D and DOMIPROJECT C 24 D.

Proven compatibility

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. 39818260 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 39818260. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms that require diagnosis in the pressure switch 39818260

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 stops and you have to press the reset button on the pressure switch for it to start again.

  Cause: The water pressure switch cuts the circuit when the pressure is not within the appropriate range, and it requires a manual reset after the cut.

  Before resetting, check the pressure on the boiler's pressure gauge and refill the circuit if it's below 1 bar.

• 02

  The reset button is pressed and does not respond, or it needs to be pressed several times for the boiler to start working again.

  Cause: The internal contact of the pressure switch may get stuck or not function properly, preventing the closure even if the pressure is adequate.

  Bleed the air from the circuit before ruling out the pressure switch: a circuit with air can also prevent the reset.

• 03

  The display shows a water pressure fault warning even though the pressure gauge indicates normal pressure.

  Cause: The pressure switch is not reading the actual pressure of the circuit correctly and is sending an incorrect cut-off signal.

  Compare the reading of the boiler's pressure gauge with an external pressure gauge at the same point before replacing the part.

• 04

  The boiler repeatedly locks out due to pressure even though the circuit has been refilled several times.

  Cause: If after filling the circuit it continues to block, it is likely that the pressure switch is not switching the contact correctly.

  First, rule out a slow leak in the circuit by checking air vents, valves, and radiators for any gradual pressure loss.

Ferroli fault codes that require diagnosis

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 39818260

Catalogue reference

39818260

Uniclima internal SKU

PADPF24

Brand

Ferroli

Type of part

Pressure switches

Units in stock

6 units

Status

Refurbished

Warranty

1 year

Shipping

Delivery time shown at checkout

Return

14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

Setting range

0.2 ÷ 2 bar

Maximum pressure

4.5 bar

Maximum ambient temperature

100°C

Contact NO

9/250~

Printed manufacturing date

26/02/07

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

• Ferroli DOMIPROJECT F 24 D Manual (PDF) Document © Ferroli, provided as a technical reference.