LG bE Error Code: Too Much Foam in the Tub
Low severity
bE is LG's bubble error, and it trips when the dishwasher senses more foam building up than it's designed to handle, which is almost never a hardware problem.
Applies to: Most LG dishwasher models with a digital control panel, across every LG dishwasher line that detects suds electronically rather than mechanically.
What it means
LG's bubble (oversuds) error, triggered when the machine detects excess foam or suds during the cycle.
LG's own troubleshooting page is refreshingly specific about the fix here: regular dish soap or too much dishwasher detergent generates enough foam to threaten a leak, so the machine stops itself rather than let suds push past the door seal and onto the floor.
Common causes
- Using regular liquid dish soap instead of dishwasher detergent
- Using too much dishwasher detergent for the load or water hardness
- A rinse aid dispenser set too high or leaking excessively
What you can check yourself
- Stop the cycle and let the suds settle, then run a drain cycle if your model has one
- Switch to a dishwasher-specific detergent if dish soap was used by mistake
- Reduce the detergent amount and check the rinse aid dispenser setting
- Wipe out any visible excess suds before restarting a normal cycle
Call a professional when
This one is almost always a detergent issue and rarely needs a technician; call one only if bE keeps appearing after you've confirmed the right detergent and amount are being used. If it does come to a service call, expect it to be billed as a straightforward $70–$130 diagnostic visit rather than a parts repair, since there's usually no failed component to replace.
Related
- LG AE — the leak fault that oversudsing can trigger if foam pushes past the door seal
- LG OE — a drain fault worth ruling out if suds keep the tub from draining cleanly
- Dishwasher Leak Detected / Water Under the Unit — what oversudsing can look like if it gets bad enough