What to check, in order
- Use dishwasher detergent only
Never washing-up liquid or hand-wash liquid. LG recommends a powder or solid dishwasher detergent, or only a small amount of liquid.
- Test it empty
Empty the dishwasher and run it with no detergent, to see whether the detergent is the cause.
- Clear the suds with milk
Set the rinse aid level to L0. Put a bowl with 200 to 300 ml of milk in the middle of the upper rack and run a Normal cycle. Repeat if suds remain, then set the rinse aid back to where it was.
- Check it's level
LG's older error list also blames a dishwasher that isn't level, front to back and side to side.
When to call an engineer
If bE shows when there are no suds to be seen, LG says to request service.
Good to know
- LG's pages vary by model. Its error code guide says 200 ml (7 oz) of milk on the Standard cycle with Extra Dry and Rinse selected, and its older list says 4 to 7 oz on the Auto cycle.
- A rinse aid setting that's too high can cause foaming too, according to LG's error list.
Parts people end up buying
Only if the checks above point to a part. Match it to your model number first: it's on a label on the edge of the door or the side of the tub.
- Dishwasher detergentSearch on Amazon
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Quick answers
What does the LG bE error code mean?
The dishwasher has found too much foam. LG puts it down to the wrong detergent, such as washing-up liquid, or too much of the right one.
Can I fix LG bE myself?
Very easy (minutes, plus a cycle). Start with: use dishwasher detergent only; test it empty; clear the suds with milk. If bE shows when there are no suds to be seen, LG says to request service.
Is LG bE worth repairing?
Not a fault. Nothing is broken. It's the detergent.
Checked against
- LG: troubleshooting the bE error on a dishwasher
- LG: dishwasher guide to error codes
- LG: dishwasher error code list
Last reviewed October 2026. Manufacturers update their pages, and your manual is the final word. Spotted a mistake? Email contact@appliance-error-codes.com.