How to Replace a Range Hood Electronic Control Board

 

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This DIY repair guide explains how to replace the electronic control board on a range hood. The electronic control board manages the range hood's components, such as the lights and fan motors.

Because parts other than the electronic control board can cause the same symptoms, have a service technician test the control board before you invest in a new one. Replace the electronic control board with the manufacturer-approved replacement part if the control board no longer activates the fan motor or lights.

Repair difficulty:
     
Time required:

Less than 45 min.

Parts Required

  • Electronic control board

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

Tools Required

  • Phillips screwdriver
  • Work gloves
  • Towel

Before you begin

Wear work gloves to protect your hands.

Prepare a padded work surface—lay a towel on the counter or work table where you plan to place the range hood to complete this repair.

 

Instructions

 Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the 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 should only be performed by a qualified technician.

Step 1: Disconnect electrical power

Shut off the house circuit breaker to disconnect electrical power to the range hood.

Step 2: Remove the filters and the bottom panel

Pull the latch tabs to release the air filters and pull both filters out of the range hood. 

Remove the screws that secure the bottom panel to the range hood frame and pull the bottom panel out of the range hood.

 

 Warning: Support the bottom panel with your hand when removing the final screw to prevent the bottom panel from falling on the cooktop.

Step 3: Remove the side panels

Unplug the wire harness connectors for the light sockets on both side panels.

Pull the front of the side panels inward to release the locking tabs and then remove the side panels.

 

Step 4: Pull the range hood from the cabinet

Disconnect the electrical power supply wiring.

Loosen the screws on the power supply wire clamp so that the power supply wires can slide out of the clamp when you pull the range out of the cabinet.

Remove the middle mounting screw. Loosen the mounting screws on the 4 corners by 1/8”.

Pull the range hood forward about 1/4” to release the corner screw through the keyhole slots.

Carefully pull the range hood down and set it upside down on a padded work surface.

 

 Warning: The range hood is heavy. You might need someone’s help to safely pull it down and set it on a padded work surface.

Step 5: Remove the fan blade

Remove the spring clamps that secure the fan blade to the motor.

Pull the fan blade up and off of the motor.

 

Step 6: Remove the electronic control board

Remove the mounting screws from the electronic control board. 

Pull the electronic control board out of the control panel and disconnect the wire harness connections.

 

Step 7: Install the new electronic control board

Connect the wire harness plugs to the new electronic control board.

Carefully slide the new control board into the control panel and line up the mounting holes.

Reinstall the mounting screws.

 

Step 8: Reinstall the fan blade

Push the fan blade onto the motor and secure it with the spring clamps.

Step 9: Reinstall the range hood

Position the range hood near its location in the cabinet.

Push the power supply wires through the power supply wire clamp.

Slide the range hood into the mounting screws under the cabinet and tighten all the corner mounting screws. Insert the middle mounting screw and tighten it.

Tighten the screws in the power supply wire clamp.

 

Step 10: Reassemble the range hood

Reinstall the side panels. Push the back end of the side panels into the frame slots and slide the front end of the side panels outward to snap them into the front brackets.

Plug the wire harness connectors for the light sockets back in.

Slide the bottom panel into place. Secure the bottom panel with the mounting screws.

Reinstall the air filters.

 

Step 11: Restore the electrical power

Reset the house circuit breaker to restore electrical power to the range hood.