Intergas Fan Flue Extractor Kombi Kompakt HR 28 24 Torin Sifan DSB144-22 Ref. 074507
Intergas Kombi Kompakt HR 28 24 includes the Torin Sifan DSB144-22 Flue Extractor Fan, with reference 074507. This fan is responsible for expelling combustion gases and generating the necessary draft for the boiler to start. If it malfunctions, you will notice that the boiler does not ignite or locks out due to issues with flue gas evacuation, and fault code 8: Incorrect fan speed may appear. It is compatible with models such as HR 22, HR 28, HR 28/24, and HR 36/30, among others. It is recommended to replace it when the boiler shows the mentioned symptoms.
VAT included
Consult via WhatsAppIntergas boilers compatible with reference 074507
Extractor with reference 074507. 16 verified compatibilities: HRE 24/18 and HRE 28/24.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Intergas HRE 24/18 | Intergas Kombi Kompakt HRE | Contrasted |
| Intergas HRE 28/24 | Intergas Kombi Kompakt HRE | Contrasted |
| Intergas HRE 36/30 | Intergas Kombi Kompakt HRE | Contrasted |
| Intergas HReco 24 | Intergas Kombi Kompakt HReco | Contrasted |
| Intergas HReco 30 | Intergas Kombi Kompakt HReco | Contrasted |
| Intergas HReco 36 | Intergas Kombi Kompakt HReco | Contrasted |
| Intergas HR 22 | Intergas Kombi Kompakt HR | Contrasted |
| Intergas HR 28 | Intergas Kombi Kompakt HR | Contrasted |
| Intergas HR 28/24 | Intergas Kombi Kompakt HR | Contrasted |
| Intergas HR 36/30 | Intergas Kombi Kompakt HR | Contrasted |
| Intergas HRE 12 | Intergas Kompakt Solo HRE | Contrasted |
| Intergas HRE 18 | Intergas Kompakt Solo HRE | Contrasted |
| Intergas HRE 24 | Intergas Kompakt Solo HRE | Contrasted |
| Intergas HRE 30 | Intergas Kompakt Solo HRE | Contrasted |
| Intergas CW5 | Intergas Prestige | Contrasted |
| Intergas CW6 | Intergas Prestige | 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 reference 074507 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 074507. 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 074507 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 extractor does not start at all, with no noise or visible rotation.
Cause: The motor may be blocked due to rust on the shaft or the winding burned out after years of use.
Check with a multimeter that power is reaching the fan before replacing it; if there is no power, the issue may be with the PCB or the pressure switch itself.
- 02
The ignition is intermittent: sometimes the boiler starts up properly and other times it gets stuck halfway.
Cause: An extractor that no longer spins at the same speed causes the pressure switch to close the contact irregularly.
Repeat the startup several times in a row and note if the fault depends on whether the boiler is cold or hot; this information helps to narrow down the source.
- 03
A metallic rubbing or squeaking sound is heard when the fan is turned.
Cause: The worn bearing allows the rotor blades to lightly rub against the casing.
Check if the rubbing is constant or only at startup; if it is constant, it is advisable to rule out that something has come loose inside the casing.
- 04
The boiler is locking out with a warning related to the fan or flue gas evacuation.
Cause: The pressure switch is not receiving the pressure signal that confirms the fan is properly expelling the flue gases.
Check that the flue gas outlet to the outside is not obstructed by leaves, nests, or dirt before replacing the fan.
- 05
A burnt or hot plastic smell appears after a failed ignition attempt.
Cause: A forced motor that does not turn smoothly can overheat and emit that smell.
Disconnect the boiler and let it cool down; visually inspect the extractor for any burn marks before deciding on the replacement.
Fault codes Intergas that this part resolves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 8 | Incorrect fan speed | The Torin-Sifan DSB144-22 fan/flue gas extractor (ref. 074507) does not rotate at the commanded speed or the rpm feedback is inconsistent; check that the impeller does not rub against the casing and the wiring between the fan and the burner control unit, and if the issue persists, replace the fan. |
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.
Extractor data sheet Intergas 074507
- Catalogue reference
- 074507
- Brand
- Intergas
- Type of part
- Extractor fans
- Units in stock
- 2 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the extractor 074507
Does this flue extractor work for my Intergas Kombi Kompakt HRE 24/18?
When should the extractor of an Intergas Prestige CW5 be replaced?
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