What to Check First
- This can occur if too much detergent is used or if moisture causes the detergent to harden in the dispenser. Since detergent is in powder form, it can clump together if left in a humid environment for too long, and these clumps may remain after operation. Old detergent may not perform as expected. Additionally, placing large dishes in the front of the lower rack can prevent the detergent dispenser lid from opening.
- ➔ Using the correct amount of detergent ensures optimal cleaning performance.
- 1. Add the appropriate amount of detergent for one wash into the detergent dispenser inside the lid and close it completely until you hear a 'click'.
- Move left or right to check the contents.
- 2. The detergent is automatically dispensed during the wash cycle.
- 3. Press the lever to open the lid.
- 4. If you start a wash without adding detergent, turn off the power, add detergent, and start again from the beginning.
- 5. If the detergent lid does not close immediately, wait about 2 minutes before closing it. (This is not a malfunction.).
- Always use the correct amount of detergent. Remove any water inside the detergent dispenser before adding detergent. Do not add detergent when using the Sterilization Drying cycle. Do not add detergent for the Quick cycle. The Quick cycle does not include a rinse, so detergent may remain.
- This guide was created for all models, so the images or content may be different from your product.
Why This Can Happen
Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.
Safety and Model-Specific Guidance
Frequently Asked Questions
What should I check first for [LG Dishwasher] Detergent Remains in the Dispenser?
This can occur if too much detergent is used or if moisture causes the detergent to harden in the dispenser. Since detergent is in powder form, it can clump together if left in a humid environment for too long, and these clumps may remain after operation. Old detergent may not perform as expected. Additionally, placing large dishes in the front of the lower rack can prevent the detergent dispenser lid from opening.
When should I stop troubleshooting and contact LG?
Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.
Does this guidance apply to every LG model?
Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.
Related LG Products
These model pages are linked because the stored category or exact model matches this Help Library topic.
LG SIGNATURE-WM9901HBA — Washers Model
Discover the LG SIGNATURE Front Load Washer that features 5.8 cu. ft. Mega Capacity and Built-In Intelligence. Shop WM9901HBA from LG USA.
LG WD405CB — SIGNATURE 1.0 cu. ft. 29 Inch SideKick™ Pedestal Washer, LG TWINWash™ Compatible
Model-specific features, specifications and buying guidance.
LG WD405CP — SIGNATURE 1.0 cu. ft. 29 Inch SideKick™ Pedestal Washer, LG TWINWash™ Compatible
Discover the LG SIGNATURE SideKick™ Pedestal Washer that features 1.0 cu.ft. Capacity and Detergent and Softener Dispensers. Shop WD405CP from LG USA.
LG WM3420CW — 4.5 cu. ft. Ultra Large Capacity Smart Front Load Washer
Home Appliances · Top Appliance Deals
LG WM3470CW — 5.0 cu. ft. Mega Capacity Front Load Washer
Discover the 5.0 cu. ft. Mega Capacity Front Load Washer that features 6Motion™ Technology and ColdWash™ Technology. Shop WM3470CW from LG USA.