A refrigerator that suddenly stops cooling can be frustrating and disruptive. In many cases, the issue comes from something simple: the power cord. Fortunately, this is an easy part to replace. With the right tools and about 15 to 20 minutes of your time, you can complete the repair yourself and avoid paying for a service call.
This guide walks you through the process of replacing the power cord (part number 3903-000400) so you can get your Samsung refrigerator working again.
Why the Power Cord Matters
The power cord supplies electricity from the outlet to your refrigerator. When it fails, the fridge will not operate at all, no matter how new or advanced it may be. A faulty cord can create a variety of issues, such as:
- Refrigerator failing to start
- Sudden power loss even though the outlet is functioning
- Sparks, burning smells, or visible damage to the cord
- Intermittent operation that causes inconsistent cooling
- Increased risk of electrical hazards inside the home
Safety Precautions Before You Begin
Handling electrical components always calls for caution. Before starting the repair, take the following precautions:
- Disconnect the refrigerator from the outlet to remove the risk of shock
- Move the unit carefully to avoid damaging the floor or walls
- Put on protective gloves to avoid cuts from sharp edges inside the access panel
- Keep children and pets away from the work area
- Double-check that the replacement cord matches the model number of your refrigerator
How to Identify a Failing Power Cord
Not every cooling problem comes from a bad power cord, so it is helpful to look for signs that point directly to this part. Check for the following indicators:
- Visible cracks, frays, or melted sections on the cord
- Discoloration around the plug or connector points
- A burning odor near the outlet or back of the refrigerator
- The appliance only works when the cord is adjusted or bent a certain way
- No response at all from the refrigerator despite using a working outlet
What You’ll Need
- Replacement Samsung power cord (part number 3903-000400)
- Phillips head screwdriver
- Flathead screwdriver
How to Replace the Power Cord on a Samsung Refrigerator
Here are the steps to safely remove the old cord and install the new OEM replacement.
Step 1. Remove the Access Panel
- Turn off the refrigerator and unplug it from the power source.
- Pull the refrigerator out to access the back.
- Use a Phillips head screwdriver to remove the screws securing the rear access panel.
- Remove the access panel and set it aside.
Step 2. Disconnect the Old Power Cord
- Locate the power cord on the right side of the refrigerator behind the water valve.
- Remove the screw securing the power cord to the cabinet.
- Remove the screw securing the ground wire (solid green).
- Remove the screw holding the water line bracket.
- Remove the screw securing the water valve to the cabinet.
- Lift the water valve and pull it forward slightly to create working space.
- Disconnect the wire harness behind the valve by pressing the locking tab and pulling down.
- Remove the screw securing the power box.
- Carefully pull the power box out, maneuvering around the water valve.
- Remove the screw securing the power box cover.
- Use a flathead screwdriver to release the locking tab and remove the cover.
- Disconnect the power cord harness by pressing the locking tab.
- Set the power box aside.
- Pull the old power cord completely out of the refrigerator.
Step 3. Install the New Replacement Cord
- Attach the new power cord to the harness.
- Insert the connector into the power box and reinstall the cover.
- Screw the power box cover back in place.
- Route the new cord around the water valve and slide the power box back in.
- The locking tab on the power box must go into the side wall opening.
- Secure the power box to the frame with its screw.
- Reconnect the wire harness.
- Route the new power cord through its original path.
- Lift the water valve slightly and push the power cord under the water lines.
- Snap the power cord into the clip.
- Route the ground wire under the water lines and through the clip.
- Screw the ground wire to the cabinet.
- Route the power cord around the valve.
- Screw the power cord to the cabinet.
- Reinstall the water valve and secure it with its screw.
- Reattach the water line bracket.
- Reinstall the rear access panel by inserting the tabs and tightening the screws.
Step 4. Restore Power and Test
- Verify all connections and screws are tight.
- Plug the refrigerator back into the outlet.
- Turn on the circuit breaker if necessary.
- Allow 15 minutes for the refrigerator to begin cooling.
- Check that the temperature drops steadily until it reaches the set point.
The Bottom Line
Your refrigerator is one of those appliances you don’t think much about until it stops working. A faulty power cord may seem like a small part, but it can bring the whole unit to a halt. Thankfully, switching it out takes only a short time and a couple of screwdrivers. Once the new cord is in place, your Samsung fridge should be back to cooling as expected, without the stress of waiting for a repair service. Taking care of this fix yourself not only saves money but also helps you understand your appliance better. Next time your fridge loses power, you’ll know exactly where to start.