Chimney-style range hood with a glass canopy over a cooktop
Generic photo: Bilguun Gantumur · Pexels License

Telescopic downdraft vent will not rise (or fan will not run)

Telescopic downdrafts have a lift motor and a separate blower. Most calls are power (cord unplugged in the cabinet, breaker), an obstruction that triggered the safety stop, or a button that was tapped instead of held. The blower is normally interlocked and only runs with the vent fully up.

Single source ~60 min moderateBrands: GE, Bosch, Broan, Zephyr, KitchenAid

Before you start

  • Keep fingers clear of the top of the vent when it is lowering
  • Unplug the downdraft before reaching into the cabinet mechanism
  • Servicing the blower or lift mechanism may require removing the cooktop; disconnect cooktop power first and refer any gas cooktop connection work to a licensed gas professional

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Telescopic downdraft vent will not rise (or fan will not run) · OnCall Tech