
Saunier Duval Themafast Condens F 30 Extractor Fan Ref. 0020018443
The Saunier Duval Themafast Condens F 30 extractor fan, with reference 0020018443, is a component designed to expel combustion gases and create the necessary draft for the boiler to start. When this part fails, the user may notice that the boiler does not ignite or locks out due to a fault in the flue gas evacuation, which can generate the fault code F.32. This fan is compatible with several models in the ThemaFast Condens range, such as the ThemaFast Condens F 24 E and the ThemaFast Condens F 30 E, among others. It is recommended to replace it if the mentioned symptoms occur or if a malfunction in the evacuation system is detected.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 0020018443
Extractor with reference 0020018443. Five confirmed compatibilities: ThemaFast Condens F 24 E and ThemaFast Condens F 30 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval ThemaFast Condens F 24 E | ThemaFast Condens | Contrasted |
| Saunier Duval ThemaFast Condens F 30 E | ThemaFast Condens | Contrasted |
| Saunier Duval ThemaFast Condens F 30 H-MOD | ThemaFast Condens | Contrasted |
| Saunier Duval Thema Condens F 24 E | Thema Condens | Contrasted |
| Saunier Duval Thema Condens F AS 24 E | Thema Condens | 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. 0020018443 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 0020018443. 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 0020018443 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 fan does not spin when the boiler is turned on, and it does not ignite.
Cause: The motor is seized or has damaged windings, which prevents the necessary rotation for the air pressure switch to allow ignition.
Unplug the boiler and try to move the turbine by hand; if it is stiff or blocked, the motor is the problem.
- 02
The boiler locks out with a flue or exhaust fault even though the fan seems to be moving.
Cause: The extractor spins, but it does not reach the necessary speed, usually due to worn bearings or dirt in the turbine.
Check the flue gas outlet duct; if it is partially blocked, the fan has to work harder and may not reach the required speed.
- 03
Metallic noise, squeaking, or noticeable vibration when the fan is operating.
Cause: The motor bearings are worn out, something common after several years of continuous use.
Listen to see if the noise changes when gently touching the casing of the extractor with the boiler turned off; if it vibrates when starting, the problem is in the bearing.
- 04
The fan starts, stops on its own, and tries again several times in a row.
Cause: The motor's start capacitor has lost capacity and cannot maintain stable rotation.
Count how many times the boiler tries to start before locking out; a start-stop pattern suggests a problem with the fan.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.32 | Fault: fan | The extractor fan blocked, without power or without Hall signal does not reach/feed back the required speed and the electronics trigger F.32; check 230 V to the fan, Hall return and free rotation, and check the speed with diagnosis d.34. |
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 Extractor Datasheet 0020018443
- Catalogue reference
- 0020018443
- Brand
- Saunier Duval
- Type of part
- Extractor fans
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days












