Manual for LDS5040ST/WW/BB

Manual for LDS5040ST/WW/BB

Brand: LG logo LG

Category: Dishwasher

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:36 p.m.

Warranty Information

LG provides a limited warranty covering defects in materials and workmanship for specific periods based on the part.

QUICK START

  1. LOAD THE DISHES: Scrape dishes free of food, bones, and other residue. Load racks as described in the manual.
  2. MEASURE DETERGENT: Fill the detergent cup with the recommended amount and close the lid. Fill the recess on the lid for prewash if desired.
  3. TURN ON DISHWASHER: Press the Power button to turn on the display.
  4. CHECK RINSE AID: The Rinse Aid indicator light will illuminate if low. Add rinse aid for effective drying.
  5. SELECT CYCLE AND OPTIONS: Choose the cycle and options that best fit the load, referring to the Cycle Selection Chart. The display shows estimated time.
  6. CLOSE THE DOOR: The dishwasher starts automatically after a slight delay once the door is latched. If the door is opened during a cycle, it will stop and resume when closed.
  7. END OF CYCLE: A chime sounds and the display shows "END" when complete. Controls and display turn off for energy conservation.

CAUTION: Empty the lower rack first to avoid dripping water onto dishes in the lower rack.

WARNING: Avoid opening the door during operation. A safety device stops the dishwasher. Be cautious of escaping steam after the cycle.

AUTO-OFF: The dishwasher turns off automatically if no cycle is selected or the door is not closed within four minutes.

Troubleshooting and error codes

Problem Possible Causes Solutions
Dishwasher will not operate Door is not completely closed. Make sure that the door is completely closed and latched.
Power supply or power cord is not connected. Connect the power supply or cord properly.
Fuse is blown or circuit breaker tripped. Replace the fuse or reset the circuit breaker.
Dishwasher operates too long Dishwasher is connected to cold water. Check the water supply connection or water heater setting. (Heating cold water takes longer.)
Odor Previous cycle was stopped before completion. Operate the Quick cycle with detergent without loading any dishes.
The dishwasher is not used daily. If the dishwasher is not used daily, it is recommend to run the Quick cycle once or twice a day until you have a full load. In case odor still persists, run a vinegar rinse through a Quick cycle by putting 2 cup(500ml) of white vinegar in an upright measuring cup in the lower rack, without detergent. It is recommended to maintain according to the CARE & CLEANING section.
Water remains in tub after completion of cycle Drain hose is kinked or clogged. Adjust hose or clear blockage.
Spots and filming on dishes Low water temperature. Water supply should be at least 120°F for best wash performance.
Wrong amount of detergent used. Use the recommended amount of detergent.
Overloading. Do not overload the dishwasher.
Improper loading. See the Using Your Dishwasher section.
Insufficient water pressure. Water pressure should be between 20 and 120 psi.
Insufficient detergent. Add the recommended amount of detergent. See the Using Your Dishwasher section.
Rinse aid dispenser is empty. Refill rinse aid dispenser.
Extremely hard water The best way to eliminate spots on your dishes is to install a whole house water softener in your home. If a water softener is already installed or you do not plan on installing one, run a Power Scrub cycle to help minimize this condition. To add an extra rinse to the cycle, select the wash cycle and then press the Extra Rinse button.
To remove hard water build up in the tub Remove all dishes, silverware and the silverware holder from the dishwasher. Only the racks should remain in the tub. Fill a measuring cup with white vinegar, approximately 14~17 ounces (400~500mL), and place the measuring cup in the lower rack. Run a Normal cycle and select Extra Rinse and Sanitary then close the door. DO NOT USE DETERGENT NOTE: Make sure to let the dishwasher complete the entire cycle. This cleaning method should only be done as needed.
Food soil remains on dishes. Improper cycle selection. Select correct cycle based on soil level and type of dishware being washed.
Water temperature too low. Check water supply connection or water heater setting.
Dish washing detergent was not used. Use recommended detergent.
Low inlet water pressure. Water pressure should be between 20 and 120 psi.
Water jet holes on spray arms blocked. Clean the spray arms.
Improper loading of dishes Make sure dishes do not block spray arm rotation or interfere with detergent dispenser.
Noise Filters are clogged. Clean filters.
Some level of noise is normal during operation. Detergent cover opening. Drain pump at the beginning of drain cycle.
The dishwasher is not level. Adjust leveling feet.
Nozzle arm knocking against dishes. Reposition the dishes.
Cloudiness on glassware. Combination of excessive detergent and hard water. Use less detergent and use a rinse aid to minimize the problem.
Black or gray marks on dishes. Aluminum items rubbing dishes during cycle. Reposition the dishes.
Yellow or brown film on inside of surfaces of dishwasher. Coffee or tea stains. Eliminate the stain by using a stain removal product.
Dishes don't dry. Rinse agent dispenser empty. Check and refill the rinse agent dispenser if empty.
Lamps do not illuminate. Power is not connected. Connect power supply.
Sprays arms do not rotate smoothly. Holes of spray arms are blocked by food particles. Clean the spray arms.
Upper rack is crooked. Rack is poorly adjusted. See the Height Adjustable Upper Rack section.
Dishwasher continuously beeps when the door is opened, during or right after a cycle has completed. The contents of the dishwasher are hot and care should be used when placing your hands inside the dishwasher. Close the door until the dishwasher and dishes have cooled down. The beeping will go away if the door is closed or the interior temperature has been cooled.
IE Error Water inlet problem. Check for a clogged, kinked or frozen water inlet hose.
OE Error Drainage Problem. Check for a clogged, kinked or frozen drain hose.
FE Error Excessive Water supplied. Check water supply.
HE Error Heater circuit failure. Please call an Authorized Service Center or LGE Customer Service at 1-800-243-0000 (US) 1-888-542-2623 (Canada)
tE Error Thermistor failure or very high inlet water temperature (over 194°F) Please call an Authorized Service Center or LGE Customer Service at 1-800-243-0000 (US) 1-888-542-2623 (Canada)
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