December 1, 2013

How to replace a range hood electronic control board

By Lyle Weischwill
How to replace a range hood electronic control board

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.

This procedure shows how to replace the electronic control board in common Kenmore, Broan, Whirlpool, Frigidaire, Electrolux and GE range hoods.

Quick links
Tools required
Phillips screwdriver
Work gloves
Towel
Repair difficulty
Time required
45 minutes or less
Repair difficulty
Time required
45 minutes or less

Instructions

  1. 01.

    Disconnect electrical power

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

    Tip: 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.
  2. 02.

    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.
    Remove the filters.

    Remove the filters.

    Remove the bottom panel screws.

    Remove the bottom panel screws.

    Remove the bottom panel.

    Remove the bottom panel.

  3. 03.

    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.

    Disconnect the light wires.

    Disconnect the light wires.

    Pull the side panel inward to release it.

    Pull the side panel inward to release it.

    Remove the bottom side panel.

    Remove the bottom side panel.

  4. 04.

    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-inch.

    Pull the range hood forward about 1/4-inch 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.
  5. 05.

    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.

    Remove the control board mounting screws.

    Remove the control board mounting screws.

    Pull the control board out and disconnect its wires.

    Pull the control board out and disconnect its wires.

    Remove the control board.

    Remove the control board.

  6. 06.

    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.

  7. 07.

    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.

  8. 08.

    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.

  9. 09.

    Restore the electrical power

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

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.

Symptoms common to all range hoods

Choose a symptom to see related range hood repairs.

Main causes: clogged air filters, air duct problems, fan motor failure, broken fan blade
Main causes: sentry feature trips due to high cooktop temperature, bad temperature sensor, electronic control board failure
Main causes: electronic control board failure, bad user interface control, light and fan switch failures, wiring failure
Main causes: bad fan switch, electronic control board failure, faulty user interface control, wiring failure
Main causes: lack of electrical power, bad electronic control board, faulty user interface, fan and light switch failure, wiring problems
Main causes: loose mounting screws, bad fan motor, damaged fan blade, worn fan motor bearings
Main causes: bad light bulb, broken light switch, bad electronic control, user interface control failure, bad light socket, wiring failure

Repair guides common to all range hoods

These step-by-step repair guides will help you safely fix what’s broken on your range hood.

December 1, 2013
By Lyle Weischwill
How to replace a range hood fan switch

The fan switch activates the fan motor in the range hood. If the fan switch is defective, replace it using the detailed steps in this repair guide.

Repair difficulty
Time required
 30 minutes or less
How to replace a range hood electronic control board

The electronic control board activates the fan and lights in the range hood. If the electronic control board is defective, replace it using the detailed steps in this repair guide.

Repair difficulty
Time required
 45 minutes or less
January 20, 2013
By Lyle Weischwill
How to replace a range hood light socket

When you replace a light bulb and it still won’t work, the socket is likely defective. Use the detailed steps in this repair guide that show you how to replace it.

Repair difficulty
Time required
 15 minutes or less

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