Shared problem guide
Source verifiedUse caution

Dishwasher has excessive foam or suds

Stop an overflowing cycle, remove accessible foam, and correct detergent or rinse-aid use before running a detergent-free rinse.

Common descriptionsFoam inside the tub · Suds leaking from the door · Hand-washing liquid used
Safety boundaryUse caution
Last reviewed 2026-08-17
Safe troubleshooting checks

Safe dishwasher foam and suds checks

4 steps
  1. 01

    Stop a cycle if foam is escaping

    Use caution

    Stop the cycle and contain water or foam that has reached the floor. Keep clear of electrical connections and close the water supply if leaking cannot be controlled safely.

    Sources: [1]

  2. 02

    Check the detergent type and amount

    User-level

    Use only detergent formulated for automatic dishwashers. Do not use hand-washing liquid, and compare the dose with the detergent packaging and exact model manual.

    Sources: [1] [2]

  3. 03

    Remove accessible foam and spilled rinse aid

    Use caution

    With the appliance off, remove visible foam using a cup, sponge, or towels. Wipe up spilled rinse aid and make sure its cap is closed without dismantling the dispenser.

    Sources: [1]

  4. 04

    Run a detergent-free rinse, then escalate if needed

    Professional help

    When foam is contained, run a rinse-only cycle without detergent and repeat only if the manufacturer guidance allows it. Arrange service if foam persists or leaking returns.

    Sources: [1]

Traceability

Sources & references

2 records
Manufacturer support

LG dishwasher guide to error codes (opens in a new tab)

LG USA · Published · Accessed

Last reviewed · Review due

Defines the approved LG Batch A clusters and explicitly says codes can differ by model.

Source verified
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