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How to Diagnose and Fix the LG Dryer D80 Error Code

The LG dryer D80 error means a problem with the moisture sensor system. This article explains how to clean sensor strips, check wiring, and replace parts to fix it safely.

5 min read

The LG dryer D80 error code means there’s a problem with the moisture sensor system that measures how dry your clothes are. This usually happens because the sensor strips or their wiring are dirty, loose, or damaged. To fix it, you should clean the sensor strips, check and secure the wiring, and replace parts if needed to get your dryer working again safely.

What does the LG dryer D80 error code mean?

The D80 error code appears when the dryer detects a fault with the moisture sensor. This sensor monitors moisture in your clothes to adjust drying time and avoid over-drying. If the control board finds the sensor signal missing, shorted, or open, it triggers the D80 error. This means the dryer can’t measure moisture accurately, so it stops the cycle to prevent damage or inefficient drying.

What usually causes the D80 error code to appear?

Common causes of the D80 error include:

  • Moisture sensor strips inside the drum being dirty or covered with residue, which blocks accurate readings.
  • Loose, damaged, or disconnected wires between the sensor strips and the control board.
  • Worn or corroded moisture sensor strips.
  • Rarely, a faulty control board that misinterprets sensor data.

Most often, the issue is with the sensor strips or wiring rather than the control board. Moisture, lint buildup, or mechanical wear can cause these parts to fail over time.

Before you start

This guide applies to LG dryers showing the D80 error on the display. You don’t need special privileges or tools beyond a multimeter for testing continuity if you choose to do so. Always unplug the dryer before inspecting or working on internal parts to avoid electric shock. No restart or data backup is required. Begin by checking the sensor strips and wiring inside the drum area.

How can I safely troubleshoot and fix the D80 error on my LG dryer?

  1. Unplug the dryer to ensure safety.
  1. Open the dryer door and locate the moisture sensor strips inside the drum, usually near the lint filter opening.
  1. Clean the sensor strips using a soft cloth dampened with rubbing alcohol to remove any lint, residue, or buildup.
  1. Inspect the wiring harness connected to the sensor strips for loose connections, damage, or corrosion.
  1. If you have a multimeter and feel comfortable using it, test the sensor strips for continuity. Lack of continuity suggests a faulty sensor.
  1. Secure any loose wires or reconnect any disconnected plugs firmly.
  1. Plug the dryer back in and reset it by turning it off and on, or unplugging it for a few minutes.
  1. Run a normal drying cycle with a moderate load to check if the D80 error clears.

If the error continues, the sensor strips may need replacement or there could be internal wiring damage requiring professional repair. Avoid forcing parts or attempting to repair the control board yourself to prevent further damage.

Photo of an unplugged LG dryer with the door open showing the moisture sensor strips inside the drum.

How do I verify that my LG dryer is fixed and the D80 error won’t return?

After repairs, run a standard drying cycle with a typical load. Watch the display to ensure the D80 error does not appear and the dryer adjusts drying time based on moisture levels. The cycle should complete normally without interruption. If the error returns, recheck the sensor strips for cleanliness and the wiring connections. Persistent issues suggest professional help is needed.

What can I do to prevent the D80 error code from happening again?

Keep the moisture sensor strips clean by wiping them monthly with a soft cloth and rubbing alcohol. Avoid overloading the dryer, as excess moisture and lint can affect sensor readings. Always clean the lint filter after each use to reduce lint buildup near the sensors. Periodically inspect sensor wiring for wear or damage. Using drying cycles appropriate for your laundry helps maintain sensor accuracy. Regular maintenance and gentle handling will extend sensor life and reduce the chance of this error.

Conclusion

If your LG dryer shows the D80 error code, start by cleaning and checking the moisture sensor strips and their wiring. These steps often fix the problem without replacing parts. If the error remains after verifying connections and cleanliness, sensor replacement or professional repair may be necessary. Testing the dryer after repair confirms the issue is resolved. Regular sensor care will help prevent future errors and keep your dryer running smoothly.

Frequently Asked Questions

Can I keep using my LG dryer if the D80 error code appears?

It’s not recommended because the dryer can’t properly detect moisture levels, which might cause over-drying or damage to your clothes and the dryer itself.

How often should I clean the moisture sensor strips to prevent the D80 error?

Cleaning the sensor strips once a month or whenever you notice the dryer isn’t drying clothes efficiently helps prevent buildup that can cause this error.

Is the D80 error covered under LG’s warranty?

Coverage depends on your dryer's purchase date and warranty terms. Moisture sensor issues are usually covered during the warranty period, but check your specific warranty documents or contact LG support to confirm.