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LG Dishwasher Cleaning Tips


If you are experiencing issues with your dishwasher not cleaning, usually this can be resolved by adjustments to selected cycles, additives, or by performing some maintenance to the dishwasher.

  • All three filters and nozzles on the spray arms should be cleaned regularly, normally once or twice a month. However, if you notice a decrease in cleaning performance of the dishwasher between your normal maintenance schedule, then all filters and spray arms should be cleaned at that time. After cleaning the filters, always be sure that they are inserted properly and locked in place. If the filters are loose, they will not fit properly and cleaning performance will decrease.

    To clean the filters and nozzles:
    1. Remove the bottom rack.
    2. Remove the round filter at the base of the tub. This is actually two filters. Separate them and clean them separately.
    3. Remove the Stainless Steel mesh filter and clean it.
    4. Remove the bottom spray arm and the spray arm located below the upper rack. Clean both of these arms, thoroughly inspecting the nozzles for food debris that may be caught in one of the water nozzles.
    5. Once the filters, spray arms, and nozzles are cleaned, replace them and try another cycle to see if cleaning performance improves.
    6. Video Example:

  • When using a powder or liquid detergent, it is best to fill the detergent dispenser approximately ½ to ¾ of the way so that you are not using too much. Using too much detergent will cause the dishwasher to not rinse well, trapping soil in the residue left on the dishes. You may also add a wash booster to your cycle to help with any conditions of the water that may affect the cleaning performance.

    Video Example:

  • Because your dishwasher is a high efficiency unit and uses so little water, it is sometimes necessary to increase the water consumption to enhance the cleaning performance. This need will depend on the load size, soil level, and types of soils on the dishes.

    Using the Power Scrub or Steam Power cycle will increase cleaning performance by extending the wash time and adding a rinse. Using these cycles will also increase the spray intensity. This can all work to help enhance the cleaning performance of your dishwasher, despite the conditions of the load.

  • Maintenance should be performed on your dishwasher approximately once every month. Minerals in the water can accumulate in the dishwasher, trapping soil and decreasing the cleaning performance. In addition, soil and debris can get trapped in the spray arms and nozzles, decreasing the water flow and spray intensity.

    Once a month, inspect the spray arm nozzles for soil and debris and clean as necessary. Run a Power Scrub or Steam Power cycle with vinegar or a dishwasher cleaner.

    If using vinegar, place a cup of vinegar in the bottom rack and set the cycle. Do not pour the vinegar into the tub, as the unit will drain during the first 45 seconds of the cycle. Once the cycle starts, the cup will fill and overflow, mixing the vinegar with the wash water.

    If using a dishwasher cleaner, follow the instructions on the cleaner itself.

    Video Example:

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