Quick answer

The Whisper Flex 2 Smart base unit is the motor and control section of the fan, so it decides whether your fan runs and how you steer it. Before buying a replacement, match the base unit to your fan's type code (DXCF74, DXCF87, DXCF100 or DXCF72) and pick the color that matches your existing setup. If your fan only needs cleaning or a loose part tightened, fix that first rather than replacing the base unit.

What the base unit actually does

The base unit is the part that drives the fan and holds the controls; the grille, blades and stand are separate. That is why a base unit can be swapped on its own when the motor or control side fails, instead of replacing the whole fan. Because the base unit carries the smart controls, it is also the part that determines which app or remote functions your fan supports.

Which type code do I need?

Duux lists the compatible fan type on each base unit, and the codes are not interchangeable. The Gray base unit suits types DXCF74 and DXCF87, the Soft Peach base unit suits type DXCF100, and the Greige base unit suits type DXCF72. Check the type code on your existing fan or its packaging before ordering, because the color alone does not tell you which fan the base unit fits.

How to set up and pair the base unit

Setup is mostly mechanical: seat the base unit on the stand, fit the fan section, and tighten the fixings so the fan sits level and does not wobble. Once it is physically assembled, power the fan on and follow the pairing steps for your model to connect it to the app. If pairing does not complete, switch the fan off at the wall, wait, and start the pairing step again from the beginning rather than repeating it mid-process.

Using the smart controls day to day

The smart base unit gives you app-based control in addition to the controls on the unit itself, which is useful when you want to change speed or a timer without walking over to the fan. Keep the fan on a stable surface and leave the grille and blades clean so airflow is not restricted. If the app loses the fan, check that the fan is powered and within range before assuming the base unit has failed.

Base unit FAQs

Can I replace just the base unit?

Yes. The base unit is a separate part from the grille, blades and stand, so it can be replaced on its own when the motor or control side is the problem. Confirm the type code on your fan before ordering a replacement.

Will any Whisper Flex 2 Smart base unit fit my fan?

No. Each base unit lists the fan types it suits, and the codes differ across the range, so a base unit for one type will not necessarily fit another. Match DXCF74, DXCF87, DXCF100 or DXCF72 to the base unit listing.

Do I need the app to use the fan?

No. The fan has controls on the unit itself; the smart base unit adds app-based control on top of those, which is handy for speed and timer changes from across the room. Set up the physical controls first, then pair the app.

The fan will not turn on after fitting a new base unit. What first?

Check the power supply, that the base unit is seated and secured correctly, and that the fan section is properly fitted before treating it as a faulty part. If it still will not run, contact Duux support with your type code and SKU.

Base units in the current range

  • Base Unit Whisper Flex 2 (Smart) Gray: Base Unit Whisper Flex 2 (Smart) in Gray, suitable for types DXCF74 and DXCF87. The two-code fit means Gray covers more than one Whisper Flex 2 Smart variant, so confirm your type code before ordering.
  • Base Unit Whisper Flex 2 Smart Soft Peach: Base Unit Whisper Flex 2 Smart in Soft Peach, suitable for type DXCF100. This one is tied to a single type code, so it is the wrong pick for DXCF72, DXCF74 or DXCF87 fans.
  • Base Unit Whisper Flex 2 Smart Greige: Base Unit Whisper Flex 2 Smart in Greige, suitable for type DXCF72. Greige is a color choice, not a compatibility shortcut, so match the type code first and the finish second.