E21 Electrolux washer error code: A troubleshooting guide

If you’re seeing an E21 error code flash on the display of your front-load Electrolux washing machine, it typically means it’s not draining properly.

Thankfully, this can be fixed with a few simple troubleshooting steps.

Disclaimer: The error code information provided in this article is based on general service manuals 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 causes the E21 error code?

The E21 code pops up when the washer control board detects that water is not being pumped out of the wash tub fast enough. There are several parts involved in draining the washer, so here are some things we could check to resolve the error message:

• A clogged or restricted drain hose
• A faulty drain pump
• Bad pump wiring connections
• Defective control board
• Improper washer installation

READ MORE: 5 Ways To Keep Your Clothes Washer In Great Shape

How to fix the E21 error code

Step 1 – Verify proper washer installation

Make sure the washer has been installed correctly according to the manufacturer’s instructions.

• Confirm that the washer is leveled properly and all feet make solid contact with the floor. Rock the washer to check for any movement or vibration. You can use a bubble leveler to make sure the washer is leveled correctly. Washing machines should only be installed on flat, smooth surfaces.
• Verify the drain hose is no longer than the recommended length and has been installed to meet minimum height requirements.
• Check that water hoses are not kinked and have no leaks. Turn on supply valves to make sure there’s proper water flow.
• Make sure all electrical connections are tight and secure.
• Look under the washer for any shifts, gaps, or damage to components caused by incorrect installation.

Correct any issues you find and run test cycles to see if the E21 error still shows up before you start internal troubleshooting.

Step 2 – Inspect the drain hose

The first thing to check is the drain hose. You’ll want to make sure there aren’t any kinks, clogs, or restrictions that could prevent water from flowing out of the washer.

1. Use a shop vac to drain out any remaining water left in the tub.
2. Remove the drain hose from both the washer and drain outlet/standpipe to check for blockages.
3. Look through the entire length of the drain hose from the washer to the standpipe or drain outlet. See if there are any sharp bends or crimps that are restricting water flow.
4. Use a plumber snake to carefully clear any clogs.
5. Flush the drain hose with water to remove any remaining lint, coins, debris, etc.
6. Make sure the drain hose is free of any cracks, damage, or holes that could leak water.
7. Straighten the drain hose if it’s excessively kinked. Also, make sure the drain hose isn’t stretched or extended past its recommended length.
8. Check that all connections are secure with no gaps or leaks. Tighten any loose connections.
9. Once the drain hose is clear, reattach it and perform a drain test. If the E21 code still shows up, check the drain pump.

Step 3 – Check the drain pump

The next component to check is the drain pump. This pump is responsible for pumping the water out from the wash tub during the drain cycles.

Here’s how to test it:

1. Start a drain cycle to activate the drain pump. Listen for any abnormal noises coming from the pump area. A faulty pump may make no noise at all or produce a loud vibrating sound. If the pump isn’t vibrating or is vibrating loudly, it likely means the pump is jammed or faulty.
2. Unplug the washer after the drain cycle is finished.
3. Access the pump by removing the panel that’s covering it.
4. Turn the rotor impeller by hand to make sure it has a springing motion when turning.
5. Remove any debris that’s clogging the pump. After removing what you can, flush it with water to clear out any remaining debris.
6. If everything looks good, reinstall the pump.

If the pump checks out OK, the issue may be with the wiring or control board.

Step 4 – Check drain pump voltage

If the pump is humming but not pumping, there could be a problem with the electrical supply to the pump, so you will need to test the voltage.

When testing live voltage, please be extra careful to protect yourself from electric shock, which could potentially cause serious injuries. Never test live voltage if you’re uncomfortable using a multimeter.

Use a multimeter to check the voltage as follows:

1. Remove the console panel to access the pump wiring harness connector.
2. Turn on the washer and start a drain cycle to activate the pump.
3. Use the multimeter probes to check for 120-volt AC at the pump harness connector while the washer is operating. If you don’t get 120 volts AC, that means there may be a problem with the control board or wiring harness.
4. Inspect the harness for any broken or disconnected wires. Replace any damaged parts.
5. Check the wiring for continuity between components. If the wiring doesn’t have continuity, then it’s bad and needs to be replaced.

If the correct amount of voltage is present but the pump still doesn’t work, the issue is with the pump itself. Replace it if needed.

If the wiring harness is good, the main electronic control board may need to be replaced.

READ MORE: How To Use A Multimeter To Check Appliance Parts

Step 5 – Replace the control board

If the drain pump and wiring check out OK, the main electronic control board may be faulty.

The control board monitors the performance of all internal unit functions and generates error codes when it signals something is wrong. Control boards can fail over time from voltage fluctuations and longtime use. Typically the control board will be replaced as a last resort.

To replace the control board:

1. Unplug the washer and disconnect the wiring connectors.
2. Remove the mounting screws to detach the old control board from the washer frame or console panel.
3. Install the new control board and reconnect all wiring harnesses and components.
4. Power up the washer and run a short test cycle to see if the error code is cleared.

READ MORE: Washing Machine Won’t Drain: Top 6 Problems and Fixes for Top-Loading and Side-Loading Washers

More information

Thank you for reading! We hope this guide helped you resolve the E21 error code on your Electrolux washer.

If you have any other appliance repair needs or projects, don’t hesitate to explore our thousands of free videos and troubleshooting guides available.

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