Ebm-papst Extractor Fan for Junkers Boiler ZWBC 30-2 C 23
If your boiler does not ignite or gets blocked due to a fault in the flue gas evacuation, the ebm-papst extractor fan for the Junkers ZWBC 30-2 C 23 boiler is the solution you need. This extractor evacuates the combustion gases and generates the necessary draft for the boiler to start. When it has problems, you may notice symptoms such as the fan running too fast or too slow, or simply not working at all. This fan is compatible with models from the Cerapur Comfort range, such as the ZWBC 30-2 C and the ZWBC 25-2 C, among others. It is recommended to replace it upon detecting faults in its operation.
VAT included
Consult via WhatsAppJunkers boilers compatible with reference 87172045290
Extractor with reference 87172045290. Two confirmed compatibilities: ZWBC 30-2 C and ZWBC 25-2 C.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Junkers ZWBC 30-2 C | Cerapur Comfort (ZWBC -2C) | Contrasted |
| Junkers ZWBC 25-2 C | Cerapur Comfort (ZWBC -2C) | 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. 87172045290 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 87172045290. If it is not visible, do not identify the part by 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 87172045290 solves.
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 and locks out due to a fault with the fan.
Cause: The motor does not start, usually due to a damaged winding or a seized shaft due to the accumulation of soot.
With the boiler turned off and unplugged, check that the turbine spins freely by hand; if it is stiff, the motor could be the issue.
- 02
The fan makes noise or vibrates noticeably while it is running.
Cause: There may be wear on the bearings or the turbine is unbalanced due to dirt accumulated on the blades.
Clean the turbine of soot and dust, and make sure it is securely attached to the casing before replacing the part.
- 03
The extractor runs intermittently, starting and stopping for no apparent reason.
Cause: There may be a partial fault in the motor or in its starting capacitor, which does not always manage to maintain stable rotation.
Check if the fault always occurs when starting cold; that pattern suggests that the problem is with the fan and not with the control board.
- 04
The boiler is locking out with a flue error even though the fan seems to be operating.
Cause: The extractor spins, but it does not reach the necessary speed for the control system to authorize the ignition.
Check that the flue duct is not completely or partially blocked before replacing the fan.
Fault codes from Junkers that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| C6 215 | Fan too fast. | The extractor is operating above the intended range (fault of the fan itself or its control). Check using the boiler's service function (fan test) and by measuring the power supply/connector; inspect for possible blockages or imbalance. |
| C6 216 | Fan too slow. | The extractor does not reach the minimum speed (seized bearings, dirt, or internal fault). Check with the fan test in the service menu and voltage at the connector; inspect blades and shaft. |
| C7 214 | The fan will disconnect during the safety time. | The extractor does not maintain start-up conditions within the safety time. Check start-up with fan test, control signal, and power supply; inspect for obstructions in the air path. |
| C7 217 | The fan is not working. | Direct fault of the extractor (motor stopped or blocked) or no flow after the defined time. Confirm with fan test in service menu and electrical check of the connector. |
| C1 264 | Fan/airflow fault (fan fault). | The extractor stops during operation or does not supply sufficient flow. Check continuous operation with a fan test, voltage/signal at the connector, and free rotation without friction. |
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.
Junkers extractor datasheet 87172045290
- Catalogue reference
- 87172045290
- Brand
- Junkers
- Type of part
- Extractor fans
- Units in stock
- 3 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.
- Component manufacturer
- ebm-papst
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Junkers ZWBC 25-2 C manual (PDF)Document © Junkers, provided as a technical reference.
Frequently asked questions about the extractor 87172045290
Who manufactures the extractor fan for the Junkers ZWBC 30-2 C 23 boiler?
Which boiler models are compatible with the extractor fan ECCZWBC30?
What faults can the extractor fan of the Junkers ZWBC 30-2 C 23 solve?
What are the fault codes associated with this extractor fan?
Where can I find the extractor fan for my Junkers boiler?
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