Filling Key Saunier Duval Isofast F35E H-MOD - Ref. S1007000

Saunier Duval boilers compatible with reference S1007000

Filling key with reference S1007000. 23 verified compatibilities: C24E and C25E.

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. S1007000 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.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference S1007000. 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 and faults that the filling valve S1007000 resolves.

The filling valve allows water to refill the heating circuit. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  The circuit loses pressure and needs to be refilled frequently.

  Cause: The valve does not seal properly and allows water to flow continuously into the circuit.

  Check the pressure after closing the valve and check again a few hours later to see if it has increased without having touched anything.

• 02

  The blue knob is broken or has come loose on the shaft.

  Cause: The plastic knob gets damaged with daily use and may crack or come loose from the metal shaft.

  Check if the metal shaft rotates well on its own before replacing the entire valve due to a broken knob.

• 03

  You see water accumulated at the base of the tap or in the metal socket.

  Cause: Over time, the socket or the connection fitting may lose tightness.

  Dry the area, tighten the fitting, and check in a few hours to see if the leak reappears.

• 04

  It's difficult to turn the key to open or close the water flow.

  Cause: Lime sediments accumulate inside the valve and hinder the movement of the mechanism.

  Apply a few drops of degreaser on the shaft before forcing the control or discarding the part.

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.

Data sheet for the filling key Saunier Duval S1007000

Catalogue reference

S1007000

Brand

Saunier Duval

Type of part

Filling valves

Units in stock

4 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.

Body material

Black plastic

Color of the knob

Blue

Socket

Metallic

Manuals and technical documentation

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

• Saunier Duval Isofast F30E Manual (PDF)Document © Saunier Duval, provided as a technical reference.