LG TRAINING MANUAL Dishwasher LDF9810ST Spring 2008
Published January 2008 by LG Electronics USA Training Center Copyright © 2008 LG Electronics of Alabama, Inc. Phone Contacts: Contact Number Hours of Operation Customer Service (800) 243-0000 24 hours a day / 7 days a week Technical Support (800) 847-7597 7am-7pm Mon-Fri / Sat 8-2 CST Parts Sales (888) 393-6484 7am-7pm Mon-Sat CST Training Center (256) 774-4051 8am-5pm Mon-Fri CST Web Contacts: Web Site Address Description LG USA www.lgusa.com Product information Customer Service us.
LDF9810ST DISHWASHER LDF9810ST DISHWASHER Contents Safety Notices, Warnings, and Disclaimers Safety Tips Warranty Specifications Features Installation Electrical Supply Preparation Water Supply Preparation Leveling Kit Drain Connection Water Connection Electrical Connection Final Installation Control Panel Options Indicators Programs Dual Intensity Spray Wash Adding Detergent Adding Rinse Aid Program Chart Test Mode Troubleshooting Error Codes Steam Generator Error Codes Troubleshooting Charts No Power Wa
LDF9810ST DISHWASHER Disassembly / Repair (continued) Detergent Dispenser Door Springs (Right and Left) Door Liner Lower Frame Drain Hose Holder Base Cover Line Noise Filter Float Switch Assembly Wiring Diagram (Location) Cabinet Base Float Assembly Steam Generator Inlet Valve Air Breaker Assembly Sump Assembly Heater and Drain Motor Vario Motor Soil Sensor Reassembly Cutlery Rail Rack Upper Rail Rack Wiring Diagram Exploded Views Model / Serial Number Decoding Chart Parts List Supplementary Material Ohm’
LDF9810ST DISHWASHER IMPORTANT SAFETY NOTICE The information in this training manual is intended for use by persons possessing an adequate background in electrical equipment, electronic devices, and mechanical systems. In any attempt to repair a major appliance, personal injury and property damage can result. The manufacturer or seller maintains no liability for the interpretation of this information, nor can it assume any liability in conjunction with its use.
LDF9810ST DISHWASHER SAFETY TIPS • Disconnect the power before servicing the dishwasher. • Reconnect all grounding devices after repairs are complete. This includes all grounding wires that are attached by screw and ring connector as well as the power input, whether cordset and outlet or hardwired. • Install the dishwasher on a properly fused and grounded dedicated circuit. • Steam is HOT! Use care when working with live steam.
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LDF9810ST DISHWASHER SPECIFICATIONS ITEM SPECIFICATION Rated Input Installation Capacity Dimensions (inches) Weight (pounds) Door Color Tub Control Programs Rated Power (Watts) Heater Power (Watts) Upper Rack Lower Rack Cutlery Rack Water Consumption Power Consumption (kWh/year) Operating Time (Minutes) Fan Dry System Steam Generator Delay Start Function Auto-Off Power Switch Process Monitor Wash Level Racks Operating Pressure (Bar) 120 VAC, 60Ø Built-in 14 place settings 23⅞ X 25 X 33⅞ 128 Black, Whit
LDF9810ST DISHWASHER FEATURES, continued 1. Control Panel 2. Door Handle 3. Front Cover 4. Lower Cover 5. Leveling Foot 6. Side Cabinet 7. Base 8. Top Spray Arm 9. Upper Spray Arm 10. Removable Tines 11. Steam Nozzle 12. Lower Spray Arm 13. Dispenser (Detergent / Rinse Aid) 14. Vapor Vent Cover 15. Tub Lamps (IllumiTub™) 16. Cutlery Rack 17. Upper Rack 18. Cutlery Basket 19. Lower Rack 20. Blue LCD Display 21.
LDF9810ST DISHWASHER INSTALLATION Installation is covered briefly for the servicer who may need to uninstall and reinstall the dishwasher for repairs. For new installations, please refer to the installation guide that was supplied with the dishwasher. • We recommend a location as close to the sink as possible (but not directly under it) for easy connection to water and drain lines. • The installation must be within 10’ (3 m) of the sink for proper drainage.
LDF9810ST DISHWASHER ELECTRICAL SUPPLY PREPATATION The dishwasher can be hardwired if necessary and if permitted by local code. We recommend the use of a dishwasher installation kit, available at most hardware and home supply stored. This kit includes a cordset, a flexible water supply line, and the elbow connector necessary to connect it. Using a cordset requires an electric outlet under the sink accessible when the dishwasher is installed.
LDF9810ST DISHWASHER DRAIN CONNECTION The drain hose must be connected in a manner that meets the local plumbing code. If the end of the drain hose does not fit the available connector, an adapter may be obtained from a local hardware or plumbing supplier. The rubber end can be cut off for the correct size attachment. This drawing shows the drain line installed with a rise in the drain pipe but no air gap. It can also be with an air gap installed. Be sure to observe the clearances listed.
LDF9810ST DISHWASHER FINAL INSTALLATION 1. Turn on the water at the valve under the sink. 2. Turn on the power at the fuse or breaker (or plug in the cordset at the outlet under the sink. 3. Run the dishwasher through one QUICK cycle to check the operation and to check for water leaks. 4. Replace the lower cover. When the door is closed, the top edge with the controls should be under the countertop.
LDF9810ST DISHWASHER CONTROL PANEL SOAK Heavily soiled loads, with cooked-on foods POWER SCRUB Normal soil level, everyday loads NORMAL Normal soil level, everyday loads STEAM DELICATE Washing delicate items, crystal, stemware QUICK Light soil level, recently used dishes and cutlery RINSE ONLY Rinses only, no washing OPTIONS STEAM RINSE SPRAY HALF LOAD DELAY START CHILD LOCK CANCEL Adds steam to SOAK, POWER SCRUB, and Normal cycles Pressing cycles through Sanitary, Extra Rinse, or both Pressing cycles t
LDF9810ST DISHWASHER PROGRAMS DUAL INTENSITY SPRAY WASH The spray intensity for the upper lower racks is programmable by the customer. By selecting SOFT SPRAY for the upper rack and STRONG SPRAY for the lower rack, you can wash delicate items like stemware on top while washing pots and pans on the bottom. 1. Press and hold SPRAY to illuminate the indicator. 2. Press SPRAY to set the intensity for the upper rack. (Strong/Medium/Soft/Off) 3. Press HALF LOAD to confirm the selection for the upper rack. 4.
LDF9810ST DISHWASHER ADDING DETERGENT Detergent must be added to the dispenser before the start of every cycle except RINSE ONLY. The detergent chamber holds 1.4 oz. (40 g) when full. If the dishes are only moderately dirty, it might be possible to use less detergent. Press the latch button to open the detergent chamber. Add detergent in the proper amount. (See chart, below.) Close the cover and be sure the latch clicks.
LDF9810ST DISHWASHER ADDING RINSE AID Turn the round cap counterclockwise and remove it. Fill the reservoir. It holds 4.8 oz. (145 ml) Replace the cap and lock it. Adjust the rinse-aid setting as necessary. The factory setting for rinse aid dispensing is 3. Too little rinse aid contributes to spotting, streaking, and poor drying performance. Too much rinse aid causes foaming, which leads to poor washing performance.
LDF9810ST DISHWASHER PROGRAM CHART LDF9810ST Page 16 DISHWASHER
LDF9810ST DISHWASHER TEST MODE LDF9810ST Page 17 DISHWASHER
LDF9810ST DISHWASHER TROUBLESHOOTING ERROR CODES ERROR CODE INLET ERROR Water not to normal level after 10 minutes’ fill time DRAIN ERROR Not completely drained after 5 minutes’ drain time LEAKAGE ERROR Excessive motor RPM due to water leakage POSSIBLE CAUSE • Water supply valve closed • Water supply shut off • Inlet hose kinked • Water pressure low (below 10 psi) • Inlet valve defective • Inlet valve filter clogged • Hall sensor defective • Input impeller is bound • Drain hose kinked or blocked • Wir
LDF9810ST ERROR CODE DISHWASHER POSSIBLE CAUSE • Inlet water temperature too hot (over 194° F or 90 °C) • Wiring connection defective THERMAL ERROR • Thermistor defective Water not to normal level after 10 minutes’ fill time • Wiring connection loose • Wash pump impeller locked LOCK ERROR • Wash motor rotor is locked • Blade is locked Motor is locked or hall sensor is defective. SOLUTION • Check water temperature using TEST MODE (See Page 13.) If temperature is displayed, adjust water temp.
LDF9810ST DISHWASHER TROUBLESHOOTING NO POWER WHEN THE POWER BUTTON IS PRESSED LDF9810ST Page 20 DISHWASHER
LDF9810ST DISHWASHER WASH PUMP / MOTOR DOES NOT RUN LDF9810ST Page 21 DISHWASHER
LDF9810ST DISHWASHER WASHING RESULTS ARE UNSATISFACTORY DRYING RESULTS ARE UNSATISFACTORY LDF9810ST Page 22 DISHWASHER
LDF9810ST DISHWASHER POWER BUTTON NOT AUTOMATICALLY OFF AFTER OPERATION LDF9810ST Page 23 DISHWASHER
LDF9810ST DISHWASHER DISASSEMBLY / REPAIR Before disassembling the dishwasher: • Unplug the dishwasher or turn off the breaker (or fuse) Disconnect the wire if the dishwasher is hard-wired. • Turn of the water supply • Remove all dishes and racks • Disconnect the water supply line to avoid hose damage • Have some towels ready to catch the spillage from water left in the dishwasher and to keep the floor safe. LOWER COVER AND INSULATION Remove the two screws in the lower cover.
LDF9810ST DISHWASHER DOOR ASSEMBLY FRONT COVER Open the door. Remove 12 screws (stainless steel). CONTROL PANEL ASSEMBLY Remove 2 screws (stainless steel). Remove the wire connections. (Do not reverse at reassembly!) Remove the latch assembly. Remove the front display. Remove 8 screws to take out the controller (main board). Reassembly is the reverse order of disassembly. Be careful to avoid reversing the connectors.
LDF9810ST DISHWASHER DOOR ASSEMBLY, continued FAN ASSEMBLY Remove the front cover. (See page 25.) Remove 4 screws and a ground screw for the door bracket. Remove the wire connections from the fan. Remove the air duct. Unscrew the inner cover to remove the fan assembly. DETERGENT DISPENSER Remove the wire connections. Remove the 2 brackets (6 screws). Use a screwdriver to pry the flange up to release the dispenser (above left.
LDF9810ST DISHWASHER LOWER FRAME Press the holder hooks as shown. Remove the 4 screws. Turn the dishwasher upside down. DRAIN HOSE HOLDER Press the holder hook as shown. Pull the drain hose and remove the drain hose holder. BASE COVER Remove 2 screws. Lift the base cover out of the base.
LDF9810ST DISHWASHER LINE NOISE FILTER Disconnect both connectors of the line noise filter. FLOAT SWITCH ASSEMBLY Remove the connections from the float assembly micro switches. Mark them to ensure you can reconnect them correctly after repairs. WIRING DIAGRAM The wiring diagram is attached to the back of the lower cover. CABINET BASE Remove 8 screws around the base. Lift the base upward off the dishwasher. FLOAT ASSEMBLY Press the hook to separate the float assembly. Pull the float assembly free.
LDF9810ST DISHWASHER STEAM GENERATOR Squeeze the hose clamps and remove the 3 hoses from the steam generator. Remove 2 screws to take out the steam generator. NOTE: Be careful in case the steam generator is still hot or has hot water in it. The steam generator is sold as an assembly. The individual parts (heater, thermistor, and sensor) are not repairable or replaceable. INLET VALVE Disconnect the water supply line. Remove the electrical ground wire.
LDF9810ST DISHWASHER SUMP ASSEMBLY Remove the wiring connections, including the ground wires attached by screws. Remove the hose connections. Lift the sump assembly out of the base of the dishwasher. Remove the 2 screws and sump holder clips. Be careful not to let the sump assembly fall into the tub. Press the hooks gently toward the center of the sump assembly and lower the sump assembly into the tub while supporting it with one hand.
LDF9810ST DISHWASHER SOIL SENSOR Lift the retaining clips and pull the soil sensor (turbidity sensor) from the sump. REASSEMBLY When reassembling the sump. be careful to avoid kinking or damaging the small seals and gaskets inside it. (See page 39 in the exploded view.
LDF9810ST DISHWASHER CUTLERY RACK RAIL Insert a screwdriver in the gap behind the rail at the back end and pry the end cap off. It is easily broken, so have a replacement available. UPPER RACK RAIL Pull the upper rack out until it stops. Squeeze the tab of the stopper and pull the stopper out. Be careful the upper rack does not fall out of the rail while you do this. Pull the upper rack out of the slides.
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LDF9810ST DISHWASHER SERIAL NUMBERS [Example] 801KW3400251 801 KW 34 00251 Production Number [Internal code] Made in Korea Manufactured January 2008 New Serial Code (ETA Mid 2008) 12345 KR 406 YP 000002 + Options Sequential number Internal code Year and month of production (YMM) Production site (2 Letters) Model ID LDF9810ST Page 40 DISHWASHER
LDF9810ST DISHWASHER PARTS LIST Loc.
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LDF9810ST DISHWASHER OHM’S LAW and WATT’S LAW P = WATTS I = AMPERES Watts = Volts x Ohms Watts = Amperes2 x Ohms Watts = Volts x Amperes Amperes = Volts / Ohms Amperes = Watts / Volts Amperes = 2 I •R 2 E /R 2 P• R E•I E/R P/E P I WATTS CURRENT VOLTS OHMS P/R P/I E R P/I 2 E /P 2 I•R E/I E = VOLTS R = OHMS Volts = Volts = Watts / Amperes Volts = Amperes x Ohms Ohms = Volts / Amperes Ohms = Volts2 / Amperes Ohms = Watts / Amperes2 LDF9810ST Page 45 DISHWASHER
LDF9810ST DISHWASHER CONVERSION INFORMATION FORMULAE °F = (9/5) °C + 32 °C = (5/9) x (°F – 32) ml X 30 = ounces LDF9810ST Page 46 DISHWASHER
LDF9810ST DISHWASHER SERVICE BULLETINS The bulletins included here were current and accurate at the time this manual was printed. The servicer is encouraged to check GCSC regularly for new and updated bulletins.
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LDF9810ST DISHWASHER SERVICE BULLETIN DRAIN INSTALLATION LDF9810ST Page 50 DISHWASHER
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LDF9810ST DISHWASHER NOTES LDF9810ST Page 60 DISHWASHER
Dishwasher - Spring 2008
