LG Dishwasher OE Error Code: Causes and Solutions

In this guide, we’ll explain the LG Dishwasher OE error code, what it means, the most common causes, and the steps you can take to fix the problem.

What Does the LG Dishwasher OE Error Code Mean?

The OE code stands for Outlet Error or Drain Error. It appears when the dishwasher’s control board determines that water remains inside the tub after the drain cycle has been activated.

Common Causes of the LG OE Error Code

There are several possible reasons why this error code may appear:

• Firstly, it could be due to the incorrect installation of the drain hose.
  • If the hose is not properly connected or is bent at a sharp angle, it can impede the flow of water and trigger the OE error.
• Another common cause is a blockage or obstruction in the drain hose.
  • Debris, such as food particles or other objects, can accumulate and create a clog, preventing proper drainage.
• If your dishwasher is connected to a garbage disposal, it’s essential to ensure that the knockout plug has been removed from the disposal connection.
  • Failing to remove this plug can lead to drainage issues and trigger the OE error code.

• In some cases, the air gap or disposal itself may be clogged, causing water to back up and triggering the fault code.
  • Cleaning or unclogging these components can help resolve the issue.
• Clogged filters within the dishwasher can also contribute to the OE error.
  • It’s important to regularly clean and maintain these filters to prevent blockages that can impede drainage.
• Additionally, the problem may lie with the drain pump impeller.
  • If the impeller is broken, stripped, or damaged, it won’t be able to effectively drain water from the dishwasher, resulting in the OE error.
• Faulty drain pump.
• Finally, the main board may not be detecting that water has properly drained from the tub.

How to Fix the LG Dishwasher OE Error Code

If you encounter the OE error code on your LG dishwasher, follow these troubleshooting steps to resolve the issue:

• Check the drain hose: Ensure that the drain hose is properly installed, without any kinks or bends that may obstruct the water flow. Straighten the hose if necessary.
• Clear any blockages. Inspect the drain hose for any blockages or debris. Remove any obstructions that may be preventing proper water drainage.
• Clean the filters: Remove and clean the filters within the dishwasher. Clogged filters can hinder drainage.
  • Refer to the user manual for instructions on how to properly clean the filters.

• Verify the knockout plug: If your dishwasher is connected to a garbage disposal, make sure the knockout plug has been removed where the dishwasher drain connects to the disposal.
  • This allows for proper drainage.
• Check the air gap or disposal: If you have an air gap or disposal, inspect them for clogs or blockages.
  • Clean or unclog these components to restore proper drainage.
• Inspect the drain pump impeller: Check the drain pump impeller for any signs of damage or obstruction.
  • If broken or stripped, the drain pump may need to be replaced.

• Verify the sump and check the valve. Inspect the sump area and check the valve for any debris or blockages.
  • Clear any obstructions that may hinder water drainage.
• Reset the dishwasher: Turn off the dishwasher, unplug it from the power source, wait for a few minutes, and then plug it back in.
  • This can sometimes reset the system and clear temporary errors.
• Inspect the drain pump: Check the wiring harness between the drain pump and the main board for any loose or damaged connections.
  • Ensure that the wiring is secure and intact.
• Measure the drain pump’s resistance: Using a multimeter, measure the drain pump’s resistance. The ohmic value should be around 4 ohms.
  • If the resistance is not within this range, it indicates a faulty drain pump. In such cases, consider replacing the drain pump.

• Consider replacing the main board. If all other troubleshooting steps have been exhausted and the OE error code persists, it may indicate a malfunctioning main board. Consider replacing the main board to resolve the issue.

It’s important to note that electrical components and wiring should be handled with caution.

Final Thought

The LG Dishwasher OE error code indicates that the dishwasher is unable to drain water properly. In most cases, the issue is caused by a clogged filter, blocked drain hose, garbage disposal obstruction, or a faulty drain pump. Starting with simple cleaning and inspection steps often resolves the problem without replacing parts.