SUD
LG Excessive Suds Detection

Washer-dryer combo displays SUD or excessive suds; drum may pause frequently and rinse cycles extend.

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Possible Causes

Use of non-HE detergent, Overdosing detergent, Very soft water with normal detergent dose, Blocked pressure hose misreading water level

How to Fix / Troubleshooting

Safety first: Avoid opening the door mid-cycle when the drum is full of water.

  • 1. Let the cycle continue:
    • The machine will usually add extra rinses to clear suds; allow it to finish.
  • 2. Adjust detergent use:
    • Use only HE (high-efficiency) detergent.
    • Reduce the amount used, especially in soft water areas.
  • 3. Clean drum:
    • Run a Tub Clean cycle with no laundry and a washing machine cleaner to remove detergent buildup.
  • 4. Pressure hose check (advanced):
    • If SUD appears frequently with correct detergent use, inspect the pressure hose for partial blockage as described in the PE error fix.
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Repair Difficulty

Very Easy 1/5
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