Ebm-papst Flue Gas Extractor for Hermann Micra Condens 26 Boiler
The Hermann Micra Condens 26 boiler uses the ebm-papst flue fan, reference H035004874. This part is responsible for expelling combustion gases and generating the necessary draft for the boiler to start. When it fails, the user will notice that the boiler does not ignite or gets locked due to issues with flue gas evacuation, which may be indicated by fault code 16. It is compatible with models from the Hermann Micra Condens range, such as the Micra Condens 26 and the Condens 26, among others. It should be replaced when it shows faults in its operation.
VAT included
Consult via WhatsAppHermann boilers compatible with reference H035004874
Extractor with reference H035004874. Two confirmed compatibilities: Micra Condens 26 and Condens 26.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Hermann Micra Condens 26 | Hermann Micra Condens | Contrasted |
| Hermann Condens 26 | Hermann Micra 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 the reference H035004874 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 H035004874. 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 H035004874 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 or stops right during the ignition cycle, and the boiler does not ignite.
Cause: The extractor needs to generate the depression that the pressure switch requires to allow ignition; if it does not start or stops, that step is not completed.
Before replacing it, check if the extractor is receiving power at the connector while the boiler is trying to ignite, to rule out a power supply issue.
- 02
The boiler repeatedly blocks or shows a fault related to flue gas extraction or draft.
Cause: A fan that does not reach the expected speed or pressure activates the control board's protection, which interprets that there is no safe evacuation of fumes.
Check the connection pipe between the fan and the pressure switch: if it is bent, disconnected, or has condensed water, the warning may be coming from there and not from the fan.
- 03
There is noticeable vibration or unusual noise in the fan, different from the usual humming during operation.
Cause: The accumulation of dust or the wear of the bearing unbalances the turbine and generates a vibration that is transmitted to the entire casing.
Open the access cover and check if the turbine blades are dirty or if there is visible play in the shaft before replacing the assembly.
- 04
The extractor works but stops by itself after a few minutes, especially when the boiler is under maximum demand.
Cause: A motor that overheats and stops under load usually has a winding that is already damaged or a bearing that seizes up with heat.
Note if the cut always coincides with high demand, such as maximum domestic hot water or peak heating; if so, lean more towards a thermal fault rather than a specific fault.
Fault codes Hermann that this part solves
| Code | Fault | Diagnosis and solution |
|---|---|---|
| 16 | Problems with the fan (flue gas extractor). | The EBM Papst RG128/1300 fan does not start, rotates with difficulty, or does not deliver sufficient flow/speed, and the electronics detect a fan fault. Check the power supply and fan connectors and visually/acoustically confirm that it starts and rotates freely; if not, 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 sheet Hermann H035004874
- Catalogue reference
- H035004874
- Brand
- Hermann
- Type of part
- Extractor fans
- Units in stock
- 5 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.
- voltage
- 12 V
- power
- 30 W
- IP rating
- IP 20
- The motor manufacturer is identified by the 'papst' logo embossed on the black casing, which is visible even when enlarged.
Frequently asked questions about the extractor H035004874
Does this ebm-papst smoke extractor work for a Hermann Micra Condens 26?
How many models are compatible with the ebm-papst ECMC26 flue gas extractor?
What fault indicates that the extractor of the Hermann Micra Condens 26 boiler needs to be replaced?
What fault codes are documented for this flue gas extractor?
Who manufactures the flue extractor for the Hermann Micra Condens 26 boiler?
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