Vaillant Turbo Tec VMW ES 242/3-5 M Flue Extractor Fan Ref. 0020073800
When you turn on the heating, the Vaillant Turbo Tec VMW ES 242/3-5 M Flue Gas Extractor Fan activates to expel the combustion gases, allowing the boiler to operate correctly. If this part fails, you may notice that the boiler does not ignite or gets locked due to a problem with the flue gas evacuation, which can manifest with fault codes such as F.32, F.33, or F.37. This fan is compatible with several models from the Turbotec Plus and Turbotec Pro ranges, including the VMW 242/4-5 M and the VMW 282/2-5. It is recommended to replace it when it shows faults in its operation.
VAT included
Consult via WhatsAppVaillant boilers compatible with reference 0020073800
Extractor with reference 0020073800. Six confirmed compatibilities: VMW ES 24/282/4-5 and VMW 242/4-5 M.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Vaillant VMW ES 24/282/4-5 | Turbotec Plus / Turbotec Pro (VMW) | Contrasted |
| Vaillant VMW 242/4-5 M | Turbotec Plus / Turbotec Pro (VMW) | Contrasted |
| Vaillant VMW 242/3-5 M | Turbotec Plus / Turbotec Pro (VMW) | Contrasted |
| Vaillant VMW 282/4-5 | Turbotec Plus / Turbotec Pro (VMW) | Contrasted |
| Vaillant VMW 242/2-5 | Turbotec Plus / Turbotec Pro (VMW) | Contrasted |
| Vaillant VMW 282/2-5 | Turbotec Plus / Turbotec Pro (VMW) | 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 0020073800 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 0020073800. 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 0020073800 resolves.
The extractor evacuates the combustion gases with forced draft. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
When requesting heating or hot water, the boiler gets locked and doesn't even start.
Cause: The PCB waits for the fan to spin and generate the correct signal before opening the gas valve, and if it does not receive it, it aborts the start-up.
Listen carefully when giving the ignition command: if the extractor doesn't spin even for a moment, it's more likely to be the extractor than the PCB.
- 02
A fault code related to the flue gas or combustion air discharge appears.
Cause: The extractor does not reach the revolutions that the air pressure switch needs to make the start contact.
Check the outlet terminal on the roof or wall first: a nest, ice, or dirt can block the fan without the part being faulty.
- 03
A buzzing or strange rubbing noise is heard when starting, and sometimes it struggles to begin turning.
Cause: The motor bearings are worn out or there is soot buildup in the turbine that is causing an imbalance in the rotation.
With the boiler turned off and unplugged, turn the turbine by hand; if you feel friction or resistance, the fault is confirmed.
- 04
The boiler ignites, makes an attempt, and shuts off after a few seconds.
Cause: The extractor starts but does not reach the minimum speed required by the pressure switch, and the control board cuts off the gas for safety.
Measure with the multimeter the voltage reaching the fan during the start attempt; if the voltage is correct but it spins slowly, the part is worn out.
Fault codes from Vaillant that this part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.32 | Fan fault | The extractor fan does not rotate or does not deliver an rpm signal (Hall sensor), so the electronics detect a fan fault. Verify 230 V/24 V power supply to the motor, connector/harness, and tachometer signal by executing P.0/diagnostic. |
| F.33 | The pressure capsule does not turn on | The air pressure switch does not close because the fan does not generate enough depression (spins weakly/blocked). Check the fan start-up (P.0), continuity of tubes to Venturi/pressure switch, and that the pressure switch closes with the fan running. |
| F.37 | Divergence of the number of revolutions during operation | The actual fan speed deviates from the setpoint (too high/low) due to a fault in the fan itself or its Hall sensor. Check the rpm reading in diagnostics and inspect the fan, wiring, and possible obstructions in the air/flue circuit. |
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 Vaillant extractor 0020073800
- Catalogue reference
- 0020073800
- Brand
- Vaillant
- Type of part
- Extractor fans
- Units in stock
- 5 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Vaillant VMW ES 24/282/4-5 manual (PDF)Document © Vaillant, provided as a technical reference.
Frequently asked questions about the extractor 0020073800
Is this Vaillant Turbo Tec VMW ES 242/3-5 M flue fan compatible with my boiler?
How many models are compatible with this extractor fan?
What fault codes are documented for this product?
Is the reference for this extractor fan ETTVMW242?
Is this extractor fan suitable for the VMW 242/4-5 boiler?
Can I use this extractor fan in a boiler from a different range?
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