Solving the LG Dishwasher bE Error Code (Bubble Error)

The LG dishwasher bE error code, often referred to as a “bubble error,” indicates an issue related to excessive suds or foam within the dishwasher. This can prevent the appliance from operating correctly. Here’s a comprehensive guide to diagnosing and resolving the bE error:

Understanding the LG Dishwasher bE Error Code Problem:

The bE error is triggered when the dishwasher’s sensors detect an unusual amount of foam, usually caused by improper detergent or other factors. This foam can interfere with the pump’s operation, leading to the error code.

Common Causes and Solutions for the LG Dishwasher bE Error Code:

Here’s a breakdown of the most common causes of the LG dishwasher bE error code and how to fix them:

• Improper Detergent (Hand Dish Soap): This is the most frequent culprit. Hand dishwashing liquids are designed to create lots of suds, which is exactly what you don’t want in a dishwasher.
  • Solution:Only use detergents specifically formulated for automatic dishwashers. These detergents are designed to produce minimal suds. To help remove existing suds and detergent residue, try this:
    1. Place a shallow bowl containing 4-8 oz of milk on the upper rack.
    2. Run a complete cycle (Auto cycle recommended). The milk helps break down the suds.
• Foamy Food Residue: Certain foods, such as whipped cream or other dairy products, can create excessive foam during the wash cycle.
  • Solution: Scrape off as much food residue as possible before loading dishes. If you frequently wash dishes with these types of food, consider using a rinse aid.
• Dishwasher Not Level: An unlevel dishwasher can cause water to pool and create excessive suds.
  • Solution: Ensure your dishwasher is properly leveled. You can adjust the leveling legs at the bottom of the unit. Use a level to check both front-to-back and side-to-side. The water level should be near the center of both tub lower indentations. Many online videos (such as on YouTube) demonstrate how to level a dishwasher.
• Filter/Pump Clogging: Debris or foreign objects clogging the filter or pump can disrupt water flow and contribute to sudsing.
  • Solution: Inspect and clean the filter and pump. Remove any visible debris or obstructions.
• Misassembled or Damaged Spray Nozzles: A misaligned or damaged top or lower spray nozzle (including the water guide) can affect water distribution and potentially lead to excess suds.
  • Solution: Check the spray nozzles for proper assembly and any signs of damage. Reassemble or replace them as needed.
• Vario Motor Defect: The vario motor controls water pressure and spray patterns. A defect in this motor can contribute to the bE error.
  • Solution: Testing the vario motor requires accessing the dishwasher’s test mode. Refer to your user manual or online resources for instructions on accessing the test mode and checking the vario motor.
• Washing Pump Motor Defect: A faulty washing pump motor can also lead to improper water circulation and sudsing.
  • Solution: If you suspect a problem with the washing pump motor, it will likely need to be replaced by a qualified technician.

How the Dishwasher Detects Bubbles:

The dishwasher uses the washing pump motor to detect the presence of excessive bubbles. When bubbles enter the pump, the load on the pump impeller is reduced, which in turn lowers the motor amperage. This change in amperage is what triggers the bE error code.

Clearing the Error:

To clear the bE error code, turn off the dishwasher, wait a few minutes, and then restart it. If the underlying cause is not addressed, the error will likely reappear.

LG Dishwasher bE Error Code: Summary Table

By following these steps, you should be able to diagnose and resolve the LG dishwasher bE error code and get your dishwasher running smoothly again.