How to Replace a Downdraft Vent Blower Motor



This DIY repair guide explains how to replace a blower motor in a downdraft vent. The blower motor, located in the housing on the air box, turns the fan blade that draws smoke and moisture away from the cooktop. Replace the blower motor with the manufacturer-approved replacement part if the motor is worn or locked up.

Use these basic repair steps to replace the blower motor in common Kenmore, Broan, GE, Whirlpool, KitchenAid, Frigidaire and Electrolux downdraft vents.

Repair difficulty:
Time required:

Less than 30 min.

Parts Required

  • Blower Motor

For manuals, repair guides, and specific part recommendations, enter your model number.

Tools Required

  • Work gloves
  • 1/4" nut driver
  • 3/8" nut driver
  • 7/16" nut driver
  • 5/32" Allen wrench

Before you begin

Wear work gloves to protect your hands. Unplug the cooktop and the downdraft vent. Remove the cooktop from the counter. Remove the downdraft vent from the counter.


 Warning: Undertaking repairs or maintenance to appliances or power equipment can be hazardous. Should you choose to undertake repairs or maintenance, you are assuming the risk of injury to your person or property. In an effort to reduce the risk, use the proper tools and safety equipment noted in the applicable guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs or maintenance, however, should only be performed by a qualified technician.

How to Replace the Blower Motor in a Downdraft Vent

Step 1: Remove the gear motor cover

With the power disconnected, remove the mounting nuts from the clamp channels and then remove both clamp channels.


Remove the screws from the gear motor cover.


Disconnect the gear motor wires and then remove the gear motor cover.

Step 2: Remove the blower housing cover

Remove the mounting screws from the blower housing cover and pull the cover off.

Step 3: Remove the blower wheel

Loosen the Allen-head set screw and lift the blower wheel off the blower motor shaft.

Step 4: Disconnect the blower motor capacitor

Pull the rubber boot up.


Place a slot screwdriver with an insulated handle across the capacitor leads to make sure it no longer has an electrical charge.


Disconnect the wires from the capacitor.


Pull the wires out of the boot.

Step 5: Flip the blower housing assembly over

Carefully tilt the top of the blower housing up and disconnect the blower motor wire harness.


Flip the blower housing assembly over and lay it on the air box.

Step 6: Remove the blower motor

Pull the capacitor wires through the blower housing grommet.


Remove the motor mounting nuts and pull the blower motor out.

Step 7: Install the new blower motor

Position the new blower motor on the mounting studs and reinstall the mounting nuts.


Thread the capacitor wires through the blower housing grommet.

Step 8: Flip the blower housing upright

Flip the blower housing assembly upright and position it on top of the air box cover.


Tilt the blower housing assembly up and plug in the blower motor wire harness.


Lower the blower housing assembly into place.

Step 9: Plug in the capacitor

Feed the capacitor wires through the rubber boot.


Connect the wires to the capacitor.


Reinstall the rubber boot on the capacitor.

Step 10: Reinstall the blower wheel

Align the flat part of the motor shaft with the set screw on the blower wheel and push the blower wheel down.


Position the blower wheel 1/8-inch above the top of the motor shaft and tighten the set screw.

Step 11: Reinstall the blower housing cover

Place the blower housing cover over the blower housing and reinstall the mounting screws.

Step 12: Reinstall the gear motor cover

Thread the wires through the gear motor cover and reconnect the wires to the gear motor.


Position the gear motor cover over the gear motor and reinstall the mounting screws.


Reinstall the clamp channels and secure them using the mounting nuts. 

Step 13: Reinstall the downdraft vent and cooktop

Reinstall the downdraft vent and cooktop in the counter following the directions in the installation guides.

Step 14: Restore power

Step 15: Reconnect the power cords for the downdraft blower and the cooktop.