Loading the Dishwasher Loading the Silverware Basket Loading the Lower Rack Loading the Upper Rack Loading the Cutlery Rack Adding Cleaning Products 40 SMART FUNCTIONS LG ThinQ Application Smart Diagnosis Function 44 MAINTENANCE Cleaning and Care 49 TROUBLESHOOTING Before Calling for Service...
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE Safety Messages Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.
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• Do not grasp the power supply line or touch the appliance controls with wet hands. • Do not modify or extend the power cable. • If the product has been submerged, contact an LG Electronics customer information center for instructions before resuming use.
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IMPORTANT SAFETY INSTRUCTIONS • Fix the drain hose securely in place. • Use only detergents or wetting agents recommended for use in a dishwasher and keep them out of the reach of children. • Do not let children eat detergent or dishwasher rinse agent. •...
IMPORTANT SAFETY INSTRUCTIONS • Connect the ground wire to the green ground connector in the terminal box. Tip Over Hazard • Do not use the dishwasher until completely installed. • Do not push down on the open dishwasher door. • Failure to follow these instructions may result in serious injury or cuts. CAUTION STATEMENTS CAUTION •...
• Do not remove the safety cover at any time. • To ensure reliability, each LG dishwasher goes through thorough quality control before it leaves the factory. • You may find water droplets or water spots from this process inside your new dishwasher.
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PRODUCT OVERVIEW • White (steady): Normal operation. † Tub Light • White (blinking): Cycle has been paused. (After † This feature is only available on some models. four minutes in pause mode, the machine turns off.) • Green: Cycle finished normally. NOTE The default ON setting keeps the green light on •...
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PRODUCT OVERVIEW Model LDTH797** LDPH797** Electrical 120 V, 60 Hz AC only, Requirements 15 A circuit breaker Water Pressure 20 psi - 80 psi (140 kPa - 550 kPa) Dimensions 23 3/4” X 24 5/8” X 33 5/8” (Width X Depth X (603 mm X 625 mm X 854 Height) Inlet Water...
- Do not reuse an old hose. Use only a new hose when installing the dishwasher. The old hose could leak or burst causing flooding and property damage. Contact an LG Customer Information Center for assistance in buying a new hose.
INSTALLATION - It is the personal responsibility and obligation Run the electrical cable along the floor 14" of the product owner to have a proper outlet – 16" (356 mm – 406 mm) from the water installed by a qualified electrician. supply line and tape it in place.
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14 INSTALLATION Removable Shipping Brace Removing Packing Materials from the Interior The rear shipping brace can be removed if additional clearance is needed when installing the Remove all packing materials from the interior of dishwasher under a low countertop. the dishwasher before installing the appliance. Removing Lower Cover Attaching Installation Brackets For countertops made of wood or other materials...
INSTALLATION NOTE • Open the door and grab the body frame and the top front opening of the tub to move or lift the dishwasher. Sliding Dishwasher into Cabinet Opening How to Slide Dishwasher Align the dishwasher with the opening. Make sure the water supply line and electrical cable CAUTION are in the correct positions to slide into their...
16 INSTALLATION Connecting Water Supply Gradually slide the dishwasher into the opening, making sure that the water supply Line and Power line and electrical cable are passing freely through the channels and do not get caught under the dishwasher. Connecting Water Supply Line CAUTION With the home water supply turned off, connect the water supply line to the inlet valve...
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INSTALLATION conduit pipe is longer than 3” (76 mm) and is centered on the back wall. Turn off electrical power to the unit at the circuit breaker. Use a Phillips screwdriver to remove the screw from the junction box cover and remove the cover.
18 INSTALLATION Wrap electrical tape around each • Do not connect drain hoses from other connection. appliances to the dishwasher’s drain hose. • If an extension drain hose is required, use a 5/8" or 7/8" inside diameter, 2-3 ft. length hose and a coupler for connecting the two hose ends.
INSTALLATION Connecting to Disposal or Waste Tee with Air Gap Attach the drain hose to the disposal with the hose clamp provided. Move the hose clamp Remove the knockout plug with a hammer into position and tighten it with a flat-blade and screwdriver.
20 INSTALLATION Checking Leveling • Turn the front leveling feet clockwise to raise the front of the tub and counterclockwise to lower it. To check that the tub is level from front to back, remove the lower rack and pour 169 oz. (5 L) of water into the bottom of the tub.
INSTALLATION can safely be drilled into, secure the dishwasher to the countertop with the provided brackets. If the countertop is granite, marble, or a material that cannot be drilled into, secure the dishwasher to the cabinet frame with the provided wood screws. CAUTION •...
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22 INSTALLATION Power on the dishwasher and run a 1 Hour Error Code Possible Cause and Solution cycle to verify proper operation. Drain hose is kinked or pinched. Check for leaks at the drain hose and water • Feed the drain and water supply connection.
OPERATION OPERATION Before Using WARNING • To reduce the risk of fire, electric shock, or injury to persons, read the SAFETY INSTRUCTIONS before operating this appliance. NOTE • Connect to the hot water supply only. The water supply temperature should be a minimum of 120 °F (49 °C) for better washing performance and shorter cycle time.
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24 OPERATION activate or deactivate display, refer to the Using the Option Setting Mode topic. • It is normal for the dishwasher to chime continuously if you open it during operation or just after the cycle ends. The dishwasher is letting you know that the interior temperatures of the unit are hot and to use caution when reaching inside.
OPERATION Control Panel Control Panel Features Top view Front view Power On/Off Button • Press this button to turn the washer on or off. • After the cycle is complete, the power automatically turns off for purposes of safety and economy. •...
26 OPERATION • Machine Clean - The Machine Clean LED flashes every 30 cycles. To activate or deactivate the LED, refer to the Using the Option Setting Mode topic. • : Digital Display 8:88 - The digital display on the control panel shows the ESTIMATED cycle time. When the cycle and options are selected, the display shows the total estimated time to complete those selections.
(except the Use a dedicated cycle downloadable via Wi-Fi or Refresh cycle). If the dishwasher could not NFC. You must install the LG ThinQ smartphone properly sanitize the dishes because the Steam app to download cycles other than the default option was not selected, the cycle was interrupted Machine Clean cycle.
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28 OPERATION Dry Boost NOTE Select the Dry Boost option for better drying • This high temperature rinse sanitizes dishes and performance. This option adds heated drying time glassware in accordance with the NSF/ANSI to the cycle for better drying results. Standard 184 for residential dishwashers.
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OPERATION Cycle Auto Normal Heavy Delicate 1 Hour Refresh Soil Level All levels All levels Heavy Light Light Light 13.2 - 23.7 9.2 - 29.2 23.9 - 27.0 16.6 - 21.7 18.1 Water Usage (gal) 3.5 - 6.3 2.4 - 7.7 6.3 - 7.1 4.4 - 5.7 Wash Time with...
30 OPERATION Non-Dishwasher Safe Items NOTE The combination of high water temperature and • Machine Clean Reminder dishwasher detergents may damage certain items. - The Machine Clean LED flashes every 30 Do not wash the following items in the dishwasher. cycles.
OPERATION Loading 12 Place Settings Loading 12 Place Settings 4 6 5 Lower Rack Loading Tips: Silverware Loading Tips: • Plates should be positioned upright and facing the center of the rack, and pots, pans and large • For best cleaning results, use the top separators dishes must be turned upside down.
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32 OPERATION Case 2 Loading Dishes & Pots NOTE • The silverware basket ships installed at the back of the bottom rack. For best performance, install it along the right side as shown. Loading Pots & Bowls...
OPERATION Loading the Upper Rack necessary to remove the cutlery rack if one is present. (For models with cutlery rack) Loading Dishes into the Upper Rack Loading the Cup Rack Loading 10 Place Settings This feature is only available on some models. Extra cups or cooking utensils can be laid on the fold down cup racks, which also provide support for long-stemmed glasses.
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34 OPERATION Loading Dishes & Pots Locate the assembly slot on the cup rack, align the slot with the bar, and firmly pop the rack off the support bar on that side. • The rack on the left pops free at the back. The rack on the right pops free at the front.
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OPERATION Raising the Rack on both sides. If the height is not the same on both sides, the dishwasher door will not shut Lift the rack at the center of each side until the rack and the upper spray arm will not connect to the locks into place in the upper position.
36 OPERATION Loading 10 Place Settings back to snap the support out of the hooks in the rear. Repeat on the opposite side. To replace the rack, place the back rack supports behind the rear hooks and pull the rack forward to snap the supports into the hooks.
OPERATION Removing the Cutlery Rack • Put detergent into the detergent compartment before starting any cycle, except the Rinse The entire cutlery rack can be removed if more (Download Cycle: P3) cycle. space is needed on the upper rack for larger items. Always remove the cutlery from the rack before WARNING removing the rack.
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38 OPERATION If a prewash is desired, fill the recessed NOTE prewash compartment area on the lid with detergent. • Using liquid rinse aid improves drying performance by allowing water to drain off of dishes after the final rinse. • Do not use detergent tablets for shorter wash cycles.
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OPERATION Press Dry Boost to change the rinse aid dispenser setting. Each press of the button changes the setting one step from L0 to L4. Once the desired rinse aid dispenser setting is selected, press Start to save. Refilling the Rinse Aid How often the dispenser needs to be refilled depends on how often dishes are washed and the rinse aid setting used.
- Turn on the Push Alerts to receive appliance wireless router manual. status notifications. • LG ThinQ is not responsible for any network The notifications are triggered even if the LG connection problems or any faults, malfunctions, ThinQ application is off.
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• The Wi-Fi connection may not connect or may be interrupted because of the home network environment. Start a cycle from the LG ThinQ application on • The network connection may not work properly your smartphone. depending on the Internet service provider.
FCC RF Radiation Exposure opensource.lge.com. Statement LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost This equipment complies with FCC radiation of performing such distribution (such as the cost of...
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SMART FUNCTIONS • Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow the instructions provided in the LG ThinQ application. Using Audible Diagnosis to Diagnose Issues Follow the instructions below to use the audible diagnosis method.
44 MAINTENANCE MAINTENANCE To maintain performance and prevent trouble, it is important to check the outside and inside of the dishwasher, including filters and spray arms, at regular intervals. WARNING • When cleaning the outside and inside of the dishwasher, do not use benzene or thinner. Otherwise, it may cause fire or explosion.
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MAINTENANCE the cleaning or repair of the external drain air • In areas with hard water, clean the filter at least gap and disposal. once a month with a soft brush. • Clean the filters using non-abrasive materials and warm running water. Cleaning the Air Gap Turn off the dishwasher.
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46 MAINTENANCE If any food residue blocks the spray arm NOTE holes, remove it with a pin or piece of stiff wire. • Make sure the filter is assembled correctly before starting a cycle. When assembling, rotate the filter firmly until it clicks. CAUTION Recommended Filter Cleaning Schedule...
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MAINTENANCE After removing the food residue, clean the • To avoid electric shock, do not put your hand spray arms under running water. inside the heat dry blower tube. • Never disassemble the nut at the base of the blower tube. Doing so may cause leakage. After cleaning the upper spray arm, press it •...
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48 MAINTENANCE To reassemble the vent cover, place it over the supply tube in the same orientation as it was removed (about 2 o’clock). Turn the cover counterclockwise until it clicks into place. CAUTION • Do not use the dishwasher without the cover in place.
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.
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No, you don't need to pre-rinse the dishes before loading especially if using the Normal and Auto 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.
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TROUBLESHOOTING On the www.lg.com home page, click on the Support menu tab to bring up the menu selections. Select Video Tutorials. Select a product category and then pick a topic or search a keyword. NOTE • Scan this QR code to quickly access the video search page on the LG website.
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Problem Possible Cause & Solution Heater circuit failure. • Please call an LG Electronics Customer Information Center at 1-800-243-0000 (U.S.A.) 1- 888-542-2623 (Canada). Water temperature sensor error • Please call an LG Electronics Customer Information Center at 1-800-243-0000 (U.S.A.) 1- 888-542-2623 (Canada).
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TROUBLESHOOTING Problem Possible Cause & Solution Dishwasher operates Dishwasher is connected to cold water. too long. • Check the water supply connection or water heater setting. (Heating cold water takes longer.) Water remains in tub Drain hose is kinked or clogged. after completion of •...
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54 TROUBLESHOOTING Performance Problem Possible Cause & Solution Odor The previous cycle was stopped before completion and residual water remains in the dishwasher. • Turn on the power, run the Cancel cycle option to remove the residual water, then run the 1 Hour cycle using detergent but with the dishwasher empty.
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During Wi-Fi setup, the app is requesting a password to connect to the product (on certain phones). • Locate the network name which starts with "LG" under Settings > Networks. Note the last part of the network name. - If the network name looks like LGE_Appliance_XX-XX-XX, enter lge12345.
Should your LG Dishwasher (“Product”) fail due to a defect in materials or workmanship under normal and proper use, during the warranty period set forth below, LG will, at its option, repair or replace the Product. This limited warranty is valid only to the original retail purchaser of the Product (“You”) and applies only when purchased lawfully and used within the United States including U.S.
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Or by mail: LG Electronics Customer Service P.O. Box 240007 Huntsville, AL 35813 ATTN: CIC PROCEDURE FOR RESOLVING DISPUTES: ALL DISPUTES BETWEEN YOU AND LG ARISING OUT OF OR RELATING IN ANY WAY TO THIS LIMITED WARRANTY OR THE PRODUCT SHALL BE RESOLVED EXCLUSIVELY THROUGH BINDING ARBITRATION, AND NOT IN A COURT OF GENERAL JURISDICTION.
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Notice of Dispute. In the event you intend to commence an arbitration proceeding, you must first notify LG in writing at least 30 days in advance of initiating the arbitration by sending a letter to LG at LG Electronics, USA, Inc. Attn: Legal Department- Arbitration 111 Sylvan Avenue, Englewood Cliffs, NJ 07632.
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LIMITED WARRANTY Opt Out. You may opt out of this dispute resolution procedure. If you opt out, neither you nor LG can require the other to participate in an arbitration proceeding. To opt out, you must send notice to LG no later than 30 calendar days from the date of the first consumer purchaser’s purchase of the product by...
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ARE NOT PERMITTED. PLEASE SEE THE SECTION TITLED “PROCEDURE FOR RESOLVING DISPUTES” BELOW. Should your LG Dishwasher ("Product") fail due to a defect in materials or workmanship under normal and proper use, during the warranty period set forth below, LG Electronics Canada, Inc. ("LGECI") will, at its option, repair, replace or pro rate the Product upon receipt of proof of the original retail purchase.
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(ASC), as determined by LG Canada. If your Product is located outside a 150 km radius from a ASC, as determined by LG Canada, it will be your responsibility to bring the Product, at your sole expense, to the ASC for in-warranty repair.
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If you and LG are unable to resolve the dispute within 30 days of LG’s receipt of the Notice of Dispute, the dispute shall be resolved by binding arbitration in accordance with the procedure set out herein.
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Limited Warranty. Opt Out. You may opt out of this dispute resolution procedure. If you opt out, neither you nor LG can require the other to participate in an arbitration proceeding. To opt out, you must send notice to LG no later than 30 calendar days from the date of the first consumer purchaser’s purchase of the product by...
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64 LIMITED WARRANTY Make certain that no dishes or Poor wash results caused by utensils are in the path of the improper loading or over stacking: spray arms. wash arm won't rotate or soap Do not place one dish on top of dispenser is held closed.
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LG Customer Information Center For inquiries or comments, visit www.lg.com or call: U.S.A. 1-800-243-0000 1-888-542-2623 CANADA Register your product Online! www.lg.com...
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