Saunier Duval Isofast F 35 EA Extractor Fan Fime L25R7612 Ref. S1072500
If your boiler does not ignite or gets blocked due to a flue gas evacuation fault, you may need the Saunier Duval Isofast F 35 EA Fime L25R7612 Extractor Fan Ref. S1072500. This flue fan is responsible for evacuating combustion gases and generating the necessary draft for the boiler to start. When it fails, you may notice errors such as F2, 02, or 10, which indicate air flow issues. It is compatible with models from the Themafast, Isofast, Isotwin, and Themaclassic ranges, among others. It is recommended to replace it when it shows faults in its operation.
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Consult via WhatsAppSaunier Duval boilers compatible with reference S1072500
Extractor with reference S1072500. Six confirmed compatibilities: Themafast F 30 E and Themafast F 30 E H-MOD.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Themafast F 30 E | Themafast | Contrasted |
| Saunier Duval Themafast F 30 E H-MOD | Themafast | Contrasted |
| Saunier Duval Isofast F 30 E H-MOD | Isofast | Contrasted |
| Saunier Duval Isofast F 35 E H-MOD | Isofast | Contrasted |
| Saunier Duval Isotwin F 30 H-MOD | Isotwin | Contrasted |
| Saunier Duval Themaclassic F AS 30 E | Themaclassic | 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. S1072500 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 S1072500. 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 extractor S1072500 resolves.
The extractor evacuates the combustion gases with forced draft. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
When turned on, the boiler starts the fan, it runs for a moment and then stops immediately without igniting a flame.
Cause: If the extractor does not rotate at the correct speed, the control does not validate the evacuation and cuts off the ignition before the gas opens.
Before purchasing the part, manually turn the turbine (boiler disconnected) to check if it is stuck or if it rubs while turning.
- 02
The boiler works, but it stops by itself every so often, especially when there is strong wind outside.
Cause: The extractor loses revolutions intermittently, and the control interprets that the smoke evacuation is not safe.
Check the flue terminal outside: if the wind is blowing directly or if there is something nearby that disrupts the exhaust, it may be the cause before the extractor.
- 03
A new rattling or vibration is heard coming from the area of the fan.
Cause: The turbine blades or the motor shaft wear out and start to generate a vibration that was not present before.
Visually check that the turbine does not touch the casing and that the screws securing the extractor are tightened before replacing it.
- 04
A fault code related to the extractor or gas evacuation appears on the display.
Cause: The boiler's electronics monitor the operation of the fan and block it if it does not respond as it should.
Note the exact code and compare it with the manual of the boiler model to confirm that it points to the fan and not to another component before purchasing.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F2 | Air deficiency safety (airflow/air intake fault). | The faulty, blocked, or unpowered extractor (fan) does not generate the necessary depression, the pressure switch does not switch, and the boiler enters F2; check voltage to the motor, free rotation/noise, and switching of the air pressure switch. |
| 02 | Airflow safety (extraction/aspiration fault) in ISOFAST ranges F. | Extractor fault prevents correct airflow/smoke flow and activates safety 02; check power supply to the fan, ensure it rotates without friction, check the condition of pressure tubes and pressure switch, and ensure the duct is not obstructed. |
| 10 | Fan fault in ISOFAST ranges F. | Fault in the extractor (motor/wiring/tachometer) detected by the electronics; check power supply and signal return, motor continuity, and ensure the fan is not blocked. |
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.
Saunier Duval S1072500 fan datasheet
- Catalogue reference
- S1072500
- Brand
- Saunier Duval
- Type of part
- Extractor fans
- Units in stock
- 7 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Isofast F 35 E H-MOD Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the extractor S1072500
Is this extractor fan Ref. S1072500 compatible with my Saunier Duval boiler?
How many models are compatible with the extractor fan ECIF35EA?
What fault codes are documented for this product?
Can I use this fan in a Themafast boiler?
Does this extractor fan work for the Isofast range?
Which models from the Isotwin range are compatible with this fan?
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