How can I test & replace the LED power supply on my KitchenAid French door refrigerator?

If your KitchenAid French door refrigerator’s LED lights are flickering or not working, it might be time to test and replace the power supply. We’ll walk you through the steps to get your fridge bright and functional again.

If you need any replacement parts for your KitchenAid refrigerator, you can enter your model number at AppliancePartsPros.com to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.

Important: The troubleshooting information in this article is based on model KFIS29PBMS02 and may not apply to your specific appliance model. While we strive to offer helpful advice for DIY appliance repairs, variations in models and configurations can lead to differences in troubleshooting steps, error codes and part replacements. For the most accurate guidance, we strongly recommend consulting the technical sheet for your specific appliance model.

What you need

• Multimeter
• Small flathead screwdriver
• A ¼” nut driver or socket
• Ratchet
• Tape

Important: The specific tools required may vary depending on the model of your appliance and the type of fasteners used on it. Always consult the user manual or refer to any specific instructions provided by the manufacturer for the recommended tools for your appliance model.

Safety precautions

Your safety should always be the top priority when performing any appliance repair.

• Always power off and unplug your appliance or switch off the circuit breaker before you attempt any maintenance or replacement work. This keeps you safe by eliminating any risk of electric shock. 
• If the appliance has recently been used, give it plenty of time to cool down before working on it. 
• Take your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.
• Work in a well-lit area so you can see and access appliance parts.
• Keep your workspace free of clutter and other obstacles. Keep children and pets away from the work area.
• Never work on internal parts with wet hands. Make sure the work area is completely dry.
• Check the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part. 
• Be gentle when handling or removing parts. Excessive force might damage the appliance or cause personal injury.
• Wear insulated work gloves to protect your hands from sharp metal parts and debris.
• When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.
• Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.
• Don’t test live voltage with a multimeter if you’re unfamiliar with how to prevent short-circuiting.

Read more: How To Deep Clean Your Refrigerator

How to test and replace the LED power supply 

Step 1: Preparation

1. Disconnect the unit from its power source.
2. Use a ¼” socket with a ratchet or a ¼” nut driver to remove the control cover from the back of the unit.
3. Locate the LED board at the bottom of the control enclosure (if applicable).

Step 2: Test the LED power supply

1. Disconnect the harness that carries the incoming voltage before plugging the fridge back in.
2. To test DC voltage, find the 4-pin, 3-wire connection (typically Blue, Yellow, and Black wires).
3. Set your multimeter to DC voltage mode and test the voltage between the Blue and Black wires on the harness. The reading should be about 13 volts DC.
4. If the LED board uses AC voltage, locate the 2-pin, 2-wire connector (typically Yellow and White wires).
5. Reconnect the unit to power, open at least one door, and test the voltage between the Yellow and White wires on the harness. The reading should be around 120 volts AC.

If power is present but none of the LEDs are working, the LED power supply needs to be replaced.

Step 3: Replace the LED power supply

1. Disconnect the remaining connector(s) from the LED board.
2. Depress the tabs securing the LED board and remove it from the enclosure.
3. Insert the new LED power supply board into place and ensure the tabs are engaged.
4. Reconnect the harnesses to the new board.
5. Reinstall the control cover and screws.
6. Restore power by plugging the fridge back in or flipping the circuit breaker back on.

Read more: The inner workings of refrigerators explained

Need more help?

Thanks for reading! We hope this guide helped you replace the LED power supply in your KitchenAid French door bottom-mount refrigerator. 

If you still need some replacement parts, grab your model number and head over to AppliancePartsPros.com. We have over two million parts in stock and most orders arrive in two business days. If you need some help with finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.

While you’re waiting for your new part to arrive, you can explore our DIY blog and watch thousands of video tutorials on our YouTube channel.

Follow us on Facebook, Twitter and Instagram to see our latest repair guides!