How To Clean Lg Inverter Direct Drive Dishwasher

Note: Some models do not have a 3-stage filter in the bottom of the tub. Instead, some models have a self-cleaning filter system that continuously cleans the water as it circulates. The self-cleaning filter grinds food into small particles before going down the drain. In this case, cleaning the filters is not necessary.

For models with filters in the bottom of the tub:

Remove the lower rack.
Turn the mesh filter counterclockwise.
Take out the mesh filter, upper STS filter, and the outer filter.
Clean the filters using non-abrasive materials and warm water.
Replace the filters in reverse order.

For more information on cleaning your dishwasher's spray arm, refer to our Video Library video LG Dishwasher - Cleaning The Filters.

Note:

For best wash performance, clean the filter after each load. If food debris remains in the filter, it may cause an odor.
In areas with hard water, it is recommended to clean this filter at least once a month with a soft brush to prevent poor wash performance.
Clean the filters using non-abrasive materials and warm running water.
Before starting a cycle, make sure that the filter is assembled correctly. If the filter is not assembled correctly you may experience poor cleaning results. When assembling, rotate it firmly until it clicks.

Recommended Filter Cleaning Chart:

Table showing the recommended filter cleaning chatrt.
Number of Loads Per Week	If you wash dishes before loading	If you crape and risnse dishes before loading	If you only scrape dishes before loading	If you do not scrape or rinse dishes beflre loading
1-3	Every 6 months	Once a year	Four times a year	Once a month
4-7	Every 6 months	Once a year	Four times a year	Twice a month (every 15 days)
8-12	Every 6 months	Once a year	Every 1.5 months	Every week
13-14	Every 6 months	Once a year	Every 1.5 months	Twice a week

When running a maintenance cycle, be sure that all of the dishes have been removed. Leave the racks in the dishwasher.

Place a cup with 1-2 cups of white vinegar on the bottom rack.
Select the NORMAL cycle.
Close the door.

This cycle may also be performed with a dishwasher cleaner instead of vinegar.

With Machine Clean Cycle Option

The Machine Clean icon flashes every 30 cycles. This cycle is for cleaning the inside of the dishwasher. Use the cycle without dishes in the machine. It eliminates residual soils, odor, white spots, and other dirt.

To clean the inside of the unit, you can use white vinegar, citric acid, or an actual dishwasher cleaner. Before starting your cleaning cycle, remove all dishes and silverware from the dishwasher. Only the racks should remain in the tub.

Using Citric Acid

To use citric acid powder (can be found in canning sections of most grocery stores or online). Measure 3 tablespoons (40 g) of citric acid powder. Fill main wash compartment with measured powder. Run Machine Clean cycle. Do not use detergent.

Using Vinegar

To use white vinegar, pour approximately one cup (200-300 mL) of white vinegar into shallow bowl and place in upper rack. Run Machine Clean cycle. Do not use detergent.

Using a Dishwasher Cleaner

To use a dishwasher cleaner in the dishwasher, simply follow the instructions on the packaging of the cleaner. Do not use detergent.

Dishwasher washing machine cleaners are available in multiple brands and come as a powder, liquid, pod, or tablet.

Without Machine Clean Cycle Option

Before starting your cleaning cycle, remove all dishes and silverware from the dishwasher. Only the racks should remain in the tub. Place the selected cleaner into the unit. Select the NORMAL Cycle. Start and run the unit.

Using Citric Acid

Using Vinegar

To use white vinegar, pour approximately one cup (200-300 mL) of white vinegar into shallow bowl and place in upper rack. Run Machine Clean cycle. Do not use detergent.

Using a Dishwasher Cleaner

To use a dishwasher cleaner in the dishwasher, simply follow the instructions on the packaging of the cleaner. Do not use detergent. Dishwasher washing machine cleaners are available in multiple brands and come as a powder, liquid, pod, or tablet.

Note: Be cautious of sharp edges when handling the stainless steel filter.
Remove food residue caught in filters to prevent the build up of odor-causing bacteria and possible drainage problems.

Turn unit OFF.

Press the POWER button to turn off the washing machine.

Remove cover and cap.

Remove the air gap cover and the plastic cap underneath it.

Clean the gap.

Looking down into the air gap, clean out any debris with a toothpick or brush.

Use a turkey basker to pour hot water into the air gap to clean it.

Replace cover and cap.

Replace the plastic cap and the air gap cover.

The drain air gap and disposal are external plumbing devices that are not part of the dishwasher.

The warranty provided with the dishwasher does not cover service costs directly associated with the cleaning or repair of the external drain air gap and disposal.