Electrolux Dryer Control Board Replacement MADE EASY

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If your Electrolux electric dryer won’t start or the controls seem unresponsive, the issue may be with the control board. This component acts as the “brain” of the dryer, managing power, heat, and cycle functions. When it fails, your dryer either won’t run properly, or won’t run at all.

The good news? With a few tools and some careful steps, you can test and replace the control board yourself. In this guide, we’ll walk through how to access the board, check its connections, test it with a multimeter, and replace it if necessary.

Why the Control Board Matters

The control board in your dryer is essentially the command center. It’s responsible for:

• Distributing power to the heating elements and the motor
• Controlling the relays that open and close circuits
• Managing the cycle settings you choose on the display
• Coordinating signals between the sensors, switches, and controls

When the board malfunctions, you might notice:

• The dryer won’t start
• Buttons or controls don’t respond
• The dryer starts but stops suddenly
• No heat or inconsistent heating
• Error codes on the display

Because these symptoms overlap with other issues, testing the board is important before deciding to replace it.

Why Control Boards Fail

Control boards are electronic components, which means they can fail for a variety of reasons:

• Power surges: A sudden spike in voltage can fry internal circuits.
• Moisture exposure: Laundry areas with high humidity can cause corrosion over time.
• Normal wear: After years of use, relays and circuits simply wear out.
• Heat stress: Dryers produce a lot of heat, which can take a toll on electronics.

Tips for a Smooth Repair

• Take pictures before disconnecting wires: This makes reassembly stress-free.
• Label connectors if you prefer a visual guide beyond photos.
• Handle the new board carefully: Avoid static discharge and rough handling.
• Keep screws in a small container so you don’t lose them during the job.

Tools You’ll Need

Before you begin, gather these tools:

• Phillips head screwdriver (or a square drive bit)
• Drill with driver bit (optional, but makes removing screws faster)
• Flathead screwdriver
• Multimeter (for testing voltage and continuity)

Safety First

• Always unplug the dryer or switch off the breaker before starting any repair.
• If you’re not comfortable testing live voltage with a multimeter, skip that step and proceed to replacement instead. Electrical shock can cause serious injury.

Step 1: Accessing the Control Board

1. Unplug your dryer or switch off the breaker.
2. Remove the two screws on the back of the dryer top panel.
3. Slide the top back, lift it up, and set it aside.
4. You’ll now see the control board mounted near the top.

The board is labeled with connections like J5 and J7, which correspond to points shown on your dryer’s wiring diagram. Note that on the physical board, these connectors may not sit right next to each other even though they look that way on the diagram.  

Step 2: Understanding the Board Connections

The control board has multiple connectors, each with numbered pins. These provide reference points for testing with your multimeter.

• J5 connector: Usually linked to the heating element circuit.
• J7 connector: Works with the relays and other parts of the heating system.

Each pin is numbered, and those numbers matter for testing. Look closely at the board itself, you’ll see small markings that indicate pin 1 and the sequence that follows.

Step 3: Testing the Control Board

Now comes the diagnostic part.

1. Reconnect power: Plug in your dryer or switch the breaker back on.
2. Set up your multimeter: Switch it to measure AC voltage.
3. Start the dryer: Choose a cycle with high heat.
4. Test across the relays:
   • Place your probes on J51 and J52.
   • Next, test J53 to J71.
   • Finally, test J72 to J73.

What to look for:

• If the relays are working properly, you should see zero volts across each pair. That means the relays are closed and passing power through correctly.
• If you see a voltage reading instead, that means the relay is open when it should be closed. This indicates a defective control board that will need to be replaced.

Step 4: Removing the Old Control Board

If your testing shows the board is defective, or you’ve already decided to replace it, follow these steps:

1. Power down again: Unplug the dryer or switch off the breaker.
2. Unscrew the board: Use a screwdriver to remove the two screws holding it in place.
3. Disconnect the wiring: Carefully pull off each wire connector.
4. Pro tip: Take a quick photo before disconnecting wires. It’ll save you time during reassembly.
5. Remove the old board completely from the dryer.

Step 5: Installing the New Control Board

1. Position the new control board where the old one sat.
2. Reconnect all the wiring: Use your photo or notes to make sure every connector goes back on the correct pin.
3. Secure the board: Reinstall the two screws you removed earlier.
4. Replace the top panel: Set it back into position and secure it with the screws at the back.
5. Restore power by plugging the dryer back in or switching on the breaker.

Step 6: Testing the Dryer

With the new control board installed, it’s time to make sure everything is working.

1. Run the dryer on a high-heat cycle.
2. Check that the control panel is responsive, the dryer starts and stays running, heat turns on as expected, and no error codes appear.

If everything checks out, your repair is complete.

How to Prevent Future Problems

While you can’t guarantee a control board will last forever, you can take steps to extend its life:

• Use a surge protector to prevent voltage spikes.
• Keep the laundry area dry and well-ventilated.
• Avoid overloading the dryer, which can cause excess strain on the system.
• Perform regular maintenance, like cleaning lint filters and vents, to reduce internal heat buildup.

Where To Find Us 

If you need any replacement parts for your appliances, you can enter your model number at AppliancePartsPros.com to locate and order them quickly. Most orders arrive in just two business days, and we have tons of great information in our repair help section and YouTube videos to help you troubleshoot.

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