
Fime Smoke Extractor for Ferroli Divatop Low NOx F24 Ref. 39817550
Smoke extractor (fan) for Ferroli boilers from the Divatop, Domicompact, Domiproject, Domitech, Divatech, and Essential ranges, in F24 Low NOx version. It expels combustion gases to the outside of the home. Manufactured by Fime (model GR03370 according to the part label). It is replaced when it fails to start, makes unusual noise, or the boiler locks out due to ventilation failure.
VAT included
Consult via WhatsAppFerroli boilers compatible with reference 39817550
Extractor with reference 39817550. 14 verified compatibilities: DIVATOP LOW NOX F24 and DIVATOP MICRO LN F24.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Ferroli DIVATOP LOW NOx F24 | Divatop | Contrasted |
| Ferroli DIVATOP MICRO LN F24 | Divatop | Contrasted |
| Ferroli DIVATOP 60 F24 | Divatop | Contrasted |
| Ferroli DIVATOP H F24 | Divatop | Contrasted |
| Ferroli DIVATECH F24 | Divatech | Contrasted |
| Ferroli DIVATECH MICRO F24 | Divatech | Contrasted |
| Ferroli DOMIPROJECT F24 | Domiproject | Contrasted |
| Ferroli DOMIPROJECT F24 D | Domiproject | Contrasted |
| Ferroli DOMICOMPACT F24 | Domicompact | Contrasted |
| Ferroli DOMITECH F24 | Domitech | Contrasted |
| Ferroli FERDIGIT F24 | Ferdigit | Contrasted |
| Ferroli FERDIGIT LOW NOx F24 | Ferdigit | Contrasted |
| Ferroli FERDIGIT MICRO F24 | Ferdigit | Contrasted |
| Ferroli NEW ELITE 60 F24 | Elite | 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 the part number 39817550 is the one 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 39817550. 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 39817550 resolves.
The extractor evacuates the combustion gases with forced draft. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler does not ignite or has difficulty starting.
Cause: The extractor motor is stuck or has trouble reaching the necessary speed, which is common due to the accumulation of soot on the shaft.
With the boiler turned off and unplugged, try to turn the turbine by hand; if you feel any friction or stiffness, the motor needs servicing.
- 02
Strange noise or vibration when the extractor is running.
Cause: Worn bearings or dirty and unbalanced turbine.
Clean the soot turbine before replacing the part; in Low NOx boilers, it is normal to have more dirt due to the type of combustion.
- 03
The boiler is locking out due to ventilation or flue gas extraction issues.
Cause: The extractor does not reach the minimum speed that the air pressure switch requires to allow ignition.
Check that the flue duct to the outside is not blocked and that the pressure sensing tubes to the pressure switch are properly connected.
- 04
There is a smell of burning or the fumes are not venting properly to the outside.
Cause: The extractor does not generate enough draft to properly evacuate the combustion gases.
Do not use the boiler in this condition; check the flue gas outlet outside and ventilate the area before continuing with the diagnosis.
Fault codes for Ferroli that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F05 | Fan anomaly. | The flue extractor (Fime 39817550) does not start or does not deliver the correct signal/voltage, so the electronics detect a fan fault; check 230 V and tachometer signal at its connectors and ensure the impeller spins freely. |
| F20 | Combustion control anomaly. | A faulty fan/extractor reduces or alters the airflow and causes poor combustion, triggering F20; check the fan and its wiring, and rule out obstructions in the flue. |
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 extractor Ferroli 39817550
- Catalogue reference
- 39817550
- Brand
- Ferroli
- Type of part
- Extractors
- 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.
- manufacturer
- FIME
- Manufacturer model
- GR03370
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Ferroli Divatop Low NOx F24 Manual (PDF)Document © Ferroli, provided as a technical reference.












