LG LDT6809SS Troubleshooting manual

TROUBLESHOOTING

51TROUBLESHOOTING

FAQs: Frequently Asked Questions

Q: Does this dishwasher require a rinse aid to be used?

A: Rinse aid is strongly recommended to enhance the drying performance of the dishwasher. In order to

be more energy efficient, the hybrid drying system does not use a heating element to assist in drying,
so a rinse aid plays an integral role in the drying process. If a rinse aid is not used, water may remain
on the dishes and the tub. Rinse aid helps to ensure that the majority of the water has been sheeted
off of the dishes at the end of the rinse and that the load is ready for the dry cycle.

Q: What can be done if my dishes have a cloudy, white film on them after a wash?

A: The cloudy film is usually caused by minerals in the water reacting with the dishwasher detergent.

First, be certain not to use too much detergent. Refer to Adding Detergent to the Dispenser section
for recommended detergent amounts. Add an extra rinse to the cycle. LG Dishwashers use less
water than traditional dishwashers, so adding an extra rinse aids in rinsing the film away. If the water
supply is hard, it may be necessary to add a performance booster that addresses the hard water
condition.

Q: How do I remove white film on the tub?

A: Measure 3 tbsp. (40 g) of citric acid powder and use it to fill the main detergent compartment. Run a

Machine Clean cycle. Do not use detergent.

Q: What steps can I take to improve drying results?

ENGLISH

A: Drying performance is directly affected by the amount of heat that remains in the tub after the

heated rinse is performed. If your dishwasher is far away from your home’s hot water heater, it may
be necessary to run the hot water tap in the sink before starting a wash cycle, to ensure that cool
water is purged from the hot water lines. This will ensure your dishwasher has a consistent supply
of hot water from start to finish. Using the High Temp setting also aids in keeping the inner drum
temperature and dishes hotter before drying begins.

LG dishwashers are designed to be used in conjunction with a rinse aid. Using a rinse aid will
maximize the amount of water that has already been sheeted away from the dishes before the dry
cycle begins. If a rinse aid is used and the performance still needs a boost, adjust the amount of
rinse aid used. 2 is the default setting, but if necessary set the level to 3 so more rinse aid is used.

Water tends to bead rather than sheet off plastic and nonstick surfaces, making them more difficult
to dry. If washing plastic items in a Normal cycle, select the Extra Dry or Night Dry option or both for
better drying results. When the rinse aid is empty, the Extra Dry option is selected automatically.

Allow the dishwasher to completely finish the dry cycle before opening the door. If the door is opened
in the middle of the dry cycle, the heat that is necessary for the hybrid dry system to work will
escape. This will cause all of the dishes inside to remain wet once the cycle finishes.

52 TROUBLESHOOTING

Q: What is the hybrid drying system?

A: The dishwasher does not rely on a heating element for the drying process; instead, it relies on the

heat that is retained by the dishes and the tub during the wash and rinse cycles to turn the moisture
in the tub into humidity.

Warm, moist air in the dishwasher is then pulled into a condensing duct in the door by a fan. The air
then cools, which causes the humidity to condense. Room temperature air is also drawn into the duct
to help the air cool down faster. When this moisture condenses into a liquid, it is drained out.

NOTE

• Rinse aid is required to enhance the drying performance. If no rinse aid is used, water may remain
on the dishes and the tub.

Q: Why am I hearing a whistling sound from the dishwasher?

A: It is important to determine the duration of the noise and when it happens (what part of the cycle).

When water is drawn into the dishwasher, a whistling noise can be heard. This is normal. If the water
pressure is too high, it will be louder, so it may be necessary to adjust the water valve to lower the
pressure if the noise is too loud.

Q: What kinds of dishes can be placed in the dishwasher?

A: Ensure that the dishes you place in the dishwasher are dishwasher safe. Plastic dishware will not

dry as effectively as glass and metal dishware. Plastic items do not retain heat as well as glass and
metal dishware. Plastic cups and dishes may require some hand drying before being put away at the
end of the cycle.

Q: Can I perform a drain only cycle?

A: To drain standing water, press and hold Start for three seconds until the cycle stops. Once the

dishwasher finishes draining, the power turns off.

Q:

A: This is normal. The dishwasher is letting you know that the interior temperatures of the unit are hot

Why does my dishwasher continuously chime if I open the door during a cycle or right after
the cycle has finished?

and to use caution when placing your hands inside. Once the unit has cooled down, the chiming will
stop.

Q: What is Control Lock and how is it activated?

A: Control Lock is a feature that prevents the controls from being changed during the cycle. It does

not prevent the door from being opened or the unit from being powered off. To activate or deactivate,
press and hold Half Load and Energy Saver simultaneously for three seconds.

Q: Can I add an extension to the drain hose?

A: If an extension drain hose is required, use 5/8" or 7/8" inside diameter, 2-3 ft. length hose and a coupler

for connecting the two hose ends.

53TROUBLESHOOTING

ENGLISH

Q:

A: This is a safety feature. The door must be closed within four seconds of pressing the Start button.

Q: Before loading dishes, should I pre-rinse dishes?

A: No, you don't need to pre-rinse the dishes before loading especially if using the Normal and Auto

An LED is blinking, the machine is chiming, and the dishwasher won't start. What is wrong
with the dishwasher?

If the door is not closed within four seconds, an LED flashes, an audible alert sounds, and the
dishwasher does not operate. To start the dishwasher, open the door and either close the door and
press Start (front controls) or press Start and close the door within four seconds (top controls).

cycles. The dishwasher washes dishes clean without pre-rinsing.

User Support Videos

For further assistance, there are videos and tutorials available
through the LG.com website.

On the www.lg.com/us home page, click on the Support menu

1

tab to bring up the menu selections. Select Video Tutorials.

Select a product category and then pick a topic or search a

2

keyword.

Scan this QR code to quickly access the
video search page on the LG website.