LG LDF9932 User manual

DISHWASHER
SERVICE MANUAL
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
NOTE
MODEL : LDF9932(WW,BB,ST)
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1. CAUTION......................................................................................................................... 4
2. SPECIFICATIONS ........................................................................................................... 5
3. WIRING DIAGRAM........................................................................................................ 6
4. FEATURES & TECHNICAL EXPLANATION ................................................................... 7
5. PARTS NAME ................................................................................................................ 11
6. PROGRAM CHART ..................................................................................................... 12
7. HOW TO DISASSEMBLE ............................................................................................ 13
8. TROUBLE SHOOTING METHODS.............................................................................. 22
A. TROUBLE SHOOTING ACCORDING TO DISPLAYED ERROR MESSAGE...........22
B. STEAM GENERATOR ERROR MESSAGE ............................................................ 24
C. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM .......................................... 25
9. INSTALLATION INSTRUCTION ................................................................................... 29
10. EXPLODED VIEW .......................................................................................................36
CONTENTS
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DISCONNECT POWER CORD BEFORE SERVICING
RECONNECT ALL GROUNDING DEVICES
IMPORTANT SAFETY NOTICE !
This service information is intended for individuals
possessing adequate backgrounds of electrical,
electronic and mechanical experience.
Any attempt to repair this appliance may result in
personal injury and property damage.
The manufacturer or seller can not be responsible
for the interpretation of this information, nor can it
assume any liability in connection with its use.
CAUTION !
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2. SPECIFICATION
Rated Voltage / Frequency AC 120V/60Hz
Installation Built-In
Place Settings 14
Product Dimension(in) 23 3/4"x 24 5/8"x 33 1/2"
Product Weight(lbs) 114lbs
Door Color White, Black, Stainless
Tub Material Stainless Steel
Control Electronic
Rated Power(Watt) 1,350
Heater Power(Watt) 1,200
Programs 6
Upper Rack Position Adjustable
Lower Rack 50% Fold down
Water Consumption 10-26 (Normal)
Power Consumption(kWh/year) 285-310
Operating Time (min) 97-124 (Normal)
Fan Dry System Yes
Delay Start Function Yes
Auto-Off Power Switch Yes
Process Monitor Yes
Wash Level 5
Racks Nylon Coating
Operating Water Pressure (Bar) 20-120 (140-830kPa)
ITEM SPECIFICATION
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9932 series
3. WIRING DIAGRAM
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4. FEATURES & TECHNICAL EXPLANATION
REMOVABLE CUTLERY RACK
Third level cutlery rack
makes it easy to load and
unload flatware and cooking
utensils.
Trays can be adjusted or
removed to make more room for regular upper
rack items.
4-1. Product Features
LARGE CAPACITY
LG dishwashers allow you to load very large
items in both the upper
and lower racks. The
tall tub provides extra
overall capacity and
the clearance to
accommodate large
dishes. Extra large items
(max. 14 in.) may be
loaded in the lower rack
by raising the upper rack.
SLIM DIRECT MOTOR™
The new Slim Direct Motor™ is inverter-
controlled. Wash
power is controlled
based on cycle
selection. It also
offers high energy
efficiency to minimize
energy use.
HYBRID DRYING SYSTEM
This system effectively dries dishes without the
use of a heating
element that would
increase energy
consumption.
VARIO SPRAY SYSTEM
Because the water spray alternates between the
upper and lower racks,
all of the power from
the motor is directed
to one rack at a time.
This concentrates all
the cleaning power of
the motor on each rack
in turn.
SOFT FOOD GRINDER AND
SELF-CLEANING FILTER
For best wash results, your LG dishwasher has
a built-in soft food
grinder and a self-
cleaning filter. The
grinder grinds up soft
food and residue into
small particles that can
be caught in the filter
and washed down the
drain. The self-cleaning
filter system continuously cleans the wash water
as it circulates to separate any residue from the
wash water. All dirt and residue is easily washed
down the drain.
LIGHT TOUCH BUTTONS AND BLUE LCD
The light touch buttons on the control panel make
selections easy and
convenient, while the
blue LCD display
clearly displays the
selected cycle and
options.
STEAM WASHING
Steam technology provides better cleaning
performance than
regular wash systems.
Steam is the most
energy efficient gentle
care for your finest
china and stemware.
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4-2. Display Panel LDF 7932 Series
Control panel may vary on some models.
EXTRA RINSE( ), SANITARY( )
1
2
1
2
CYCLES
Press the cycle that corresponds to your desired wash
cycle.
POWER SCRUB
This cycle is for very heavily soiled dishes.
NORMAL
This cycle is for normally soiled, everyday loads.
DUAL INTENSITY
This cycle washes the upper and lower racks at different
spray intensities. The default setting for this cycle washes
the lower rack with strong spray intensity and the upper
rack with soft spray intensity. This provides optimum
cleaning performance for mixed loads, including fine
china and stemware. If other combinations are desired,
use the steps listed below to change the intensities or to
use the HALF LOAD feature.
How To Use Dual Intensity
1. Press and hold the SPRAY button for three seconds until
the UPPER light begins to blink.
2. While the UPPER light is blinking, press the SPRAY
button until the desired intensity for the upper rack is
selected.
3. Press the HALF LOAD button to switch to the lower rack
and use the SPRAY button to adjust to the desired
intensity.
4. Selections can be cancelled by selecting any cycle except
QUICK WASH
This is a shortened cycle that is perfect for recently used
or lightly soiled loads.
STEAM DELICATE
This cycle adds the gentle power of steam to boost the
cleaning power of the delicate cycle. The cycle is perfect
for effectively cleaning delicate items like fine china or
stemware.
STEAM FRESH
This cycle can be used to freshen up dishes that may
have been stored or not used for a long time.
CHIME ON/OFF
To enable or disable the chime, press and hold the
Quick Wash and Rinse buttons for 2 seconds.
RINSE ONLY
This cycle is a quick rinse for dishes that will not be
washed immediately. No detergent should be used.
To select the Rinse Only cycle, press the Power
button; then press the Rinse button once without
pressing any other cycle buttons.
NOTE: If a main cycle has been selected, the Rinse
Only cycle will not be available without first shutting
the power off.
CANCEL
To cancel a running cycle, open the door and then
press and hold the Dual Intensity and Quick Wash
buttons together for 3 seconds. The drain pump
will be activated and the cycle will be cancelled.
CYCLE OPTIONS AND DISPLAY
Press the desired cycle option buttons to select
and set any of the dishwasher’s options described
below. The display will show the selected cycle times
and cycle options.
SPRAY (INTENSITY)
Repeated pressing of the Spray button will select the
desired spray. The strong, medium, or soft light will
show in the top left portion of the display.
RINSE
Repeated pressing of the Rinse button will select the
desired Rinse option. The Sanitary, Extra Rinse, or
Sanitary and Extra Rinse lights will show in the
bottom left portion of the display.
3
Soft ( ), Medium ( ), Strong ( )
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• If you select the Sanitary feature, the Sanitary light
will blink until the water is heated to the sanitary
temperature level*. Once the sanitary temperature
level is reached, the light will stay on to indicate
that the sanitary temperature has been reached.
*NOTE: This high-temperature rinse sanitizes
dishware and glassware in accordance with
NSF/ANSI Standard 184 for residential
dishwashers. Certified dishwashers are not
intended for licensed food establishments.
• When you select Extra Rinse, an additional
rinse cycle is added.
• Rinse Only is a wash cycle described on
the previous page.
CHILD LOCK
Lamp will turn on when Child Lock
setting is on.
• To lock/unlock the buttons, press and hold the
Delicate and Rinse Only Buttons simultaneously
for 3 seconds with the door open.
• Lock the control buttons during cycle operation to
prevent settings from being changed.
RINSE AID
Refill with rinse aid when the lamp
turns on.
DIGITAL DISPLAY
The Digital Display on the control
panel shows the estimated cycle and
option times.
When the dishwasher is powered up, the display will
be blank. When the cycle and options are selected,
the display will show the total estimated time to
complete those selections. During operation, the
display shows the remaining estimated operating
time.
NOTES:
• The estimated time shown in the display does not
include delay times for heating water, etc.
• If Delay Wash is selected, the display shows the
delay time in hours.
HALF LOAD
• For small loads, you may use just the upper or
lower rack to save energy.
• Each press of the Half Load button cycles
berween upper rack only and lower rack only.
• If Half Load is not pressed, the dishwasher will
run normally, with upper and lower spray arms
operating alternately.
DELAY START
• To delay the start of a selected cycle, press
the Delay Start button.
• Each time Delay Start is pressed will delay
the start of the cycle by one additional hour.
• The delay start time can be set from 1 to 12
hours in one-hour increments.
STEAM
• Press the Steam button to add steam to a
selected cycle.
• The Steam symbol will be lighted on when the
STEAM option has been selected.
• The steam symbol will blink while steam is being
injected into the dishwasher.
POWER
• Pressing the Power button turns on power
to the controls.
• After the cycle is complete, the power
automatically turns off for safety and economy.
• If there is a power surge, power outage,
or disruption of any kind, the power will be
automatically turned off for safety, and the
cycle will need to be restarted.
3 4
wWARNING
Steam can cause burns. Use caution in
the area of the steam nozzle on the left
side of the dishwaher if the door is opened
during the steam portion of a cycle.
Contact with the steam or the steam nozzle
can cause burns.
4
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4-3. TEST MODE LDF 7932 Series
CHECK PROGRAM
BUTTON The number of
pushing button
Top
Display LED lightingLoad
Load and Checking points Door open/
closed Remark
STEAM+RINSE+
POWER Buttonn
POWER SCRUB
NORMAL
DUAL INTENSITY
QUICK WASH
STEAM DELICATE
STEAM FRESH
STEAM
SPRAY
RINSE
HALF LOAD
DELAY START
Normal water level : 270 ~ 275
Pure water : more than 130
H: High water level / L: Low water level
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
1 TIME
2 TIME
3 TIME
4 TIME
5 TIME
6 TIME
7 TIME
8 TIME
9 TIME
10 TIME
11 TIME
12 TIME
13 TIME
14 TIME
15 TIME
16 TIME
Steam generator
Temp( )
0n:H1
0n:33
Frequency
0n:35
0n:36
0n:37
0n:38
Sump Temp( )
Soil level
0n:3b/Motor RPM
Steam generator
Water level
0n:3d
0n:3E
Auto-Off
0n:3F
(RPM,Frequency)
0n:3H/ 0U:00
00:00
11:11
22:22
33:33
44:44
55:55
66:66
77:77
88:88
99:99
Steam generator
Thermistor
Steam generator
Heater (for 1.2 sec)
Drain Pump
Inlet Valve
Dispenser
Sump Heater
(for 10 sec)
Fan Motor
Sump Thermistor
Soil sensor
Wash Pump
Water level
Lower Nozzle
(Vario)
Upper Nozzle
(Vario)
W/Pump+Vario+
Heater (for 1min)
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
All LEDs
Either
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
All LEDs are lighting
Either
Either
Either
Either
Either
Either
Either
Either
Either
Either
Either
Closed
Either
Closed
Closed
Closed
Closed
Closed
Either
Either
Closed
Either
Closed
Closed
Closed
Closed
See Test 3
See Test 4
See Test 5
See Test 6
See Test 7
See Test 1
See Test 8
See Test 8
Steam Demo mode : Steam + Power
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5. PARTS NAME
The appearance and specifications may be varied without notice according to localities.
5-3. LDF 9932 Series
INSTALL BRACKET WOOD SCREW
CONTROL PANEL
DOOR HANDLE
FRONT COVER
LOWER COVER
LEVELING FEET
FRONT DISPLAY
(SignaLight™)
BASE
TOP SPRAY ARM
UPPER SPRAY ARM
1
2
4
5
3
6
9
7
8
11
14
15
12
10
STEAM NOZZLE
LOWER SPRAY ARM
DETERGENT AND RINSE AID
DISPENSER
DRYING VENT COVER
TUB LAMP
(Illumitub™)
CUTLERY RACK
UPPER RACK
SILVERWARE BASKET
LOWER RACK
TOP DISPLAY
POWER BUTTON
1
2
5
6
3
4
7
8
9
10
11
12
15
16
13
14
17
18
19
20
16
17
18
19
20
13
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6. PROGRAM CHART(SCHEMATIC DIAGRAM)
LDF 9932 Series
Program chart
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BEFORE DISASSEMBLING THE DISHWASHER ;
1) Remove the cord from electric outlet to avoid electric shock.
2) Close the Water Tap (faucet).
3) Remove all dishes and items in the dishwasher.
4) Remove the Lower Rack and the Upper Rack.
5) Remove the inlet hose and drain hose connetion to avoid the hose damages.
6) Prepare some towels to avoid floor wet by the water left in the dishwasher.
7. HOW TO DISASSEMBLE
7-1. FULL DISASSEMBLE
1. Lower Cover and Lower Felt
1) Remove the front 2 screws.
2) Remove the Inlet Hose and Power Supply
Cable.
2. Tub Felt
1) Tub Felt
Lower Cover
Tub Felt
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Control Panel Front Cover
Controller
Controller
Latch Assembly
3-1. Door Assembly
1) Front Cover
Open the door.
Remove 12 screws(stainless).
2) Control Panel Assembly
Remove 2 screws(Stainless).
Remove the wire connections.
Be sure the wiring should not be
changed in reassembling
Remove the Latch assembly.
Remove the Front Display.
Remove 8 screws for Controller.
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Fan Assembly
Inner CoverGasket
Flange
Hose
Detergent
Dispenser
Door Hinge
Air Duct
Door Bracket
Hinge Bracket
Hinge Spring
3) Fan Assembly
Open the door.
Remove 4 screws and a earth screw for
Door Bracket.
Remove the wire connetions.
Remove the Air Duct.
Turn the Inner Cover counterclockwise.
4) Detergent Dispenser
Close the door
Remove the wire connections.
Remove 6 screws with brackets.
Push the Detergent slowly pulling up the
the Flange by Standard Screwdriver.
5) Door Spring (Right & Left)
Push the Spring upwards and take it off
from the Hinge Bracket.
Be careful not to be injured by the
sharpedge of Tub.
Take off the Hinge Link from the Hinge.
6) Door Liner
Open the door.
Pull the Door Liner and take it off from
the Hinge Supporter.
Door Liner Assembly
Hinge Supporter
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Lead Wire Holer Hook
Lead Wire Holer
Lower Frame
Drain Hose
Drain Hose
Holder
4. Lower Frame
1) Press the holder hook as shown in figure.
2) Remove 4 screws.
6. Drain Hose Holder
1) Press the holder hook as shown in figure.
2) Pull the Drain Hose and remove the Drain
Hose Holder.
5. Put the Dishwasher upside down.
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7. Base Cover
1) Remove 2 screws.
2) Pull the Base Cover out.
8. Harness & Hose Assembly
1) Remove the wiring connections.
2) Remove the Hose connections from
Sump Assembly.
You can see the information of Wiring
Diagram at the back of Lower Cover.
Cabinet Base
Base Cover
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9. Cabinet Base
1) Remove 8 screws.
2) Lift it upward.
12. Foot & Nut
1) Pull the Foot twisting
2) Pull the Nut pushing the hook.
Cabinet Base
Float Assembly
WaterLevel
Sensor (High)
Thermistor
Heater
Water Level
Sensor (Low)
10. Float Assembly
1) Press the Float hook.
2) Pull the Float Assembly
11. Steam Generator
1) Disconnect the 3 hoses assembly.
2) You can disassemble the Steam generator
by removing the 2 screws.
Steam
Generator
Nut
Foot
CAUTION
Be cautious in case of the generator is hot
temperature.
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Inlet Valve
Cabinet Base
Air Braker
Nut
Gasket
Air Braker
Assembly
14. Inlet Valve
1) You can disassemble the lnlet Valve by
removing the 2 screws.
13. Rear Leg Adjustment System
1) Remove 2 screws.
2) Pull the Holder.
3) Pull the Leg Adjust.
4) Pull the Shaft Assembly.
15. Air Braker Assembly
1) Disconnect the 3 hoses assembly.
2) Turn the Air Braker Nut counterclockwise.
Be careful the o-ring should not be lost.
Holder
Leg Adjust
Shaft Assembly
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Sump Holder
Hook
Sump
Assembly
1) Heater & Drain Motor
Pull the Heater out of the Sump after
releasing the nut.
Remove 3 screws.
2) Vario Motor
Remove 2 screws for Vario Motor.
Pull the Vario Motor and Micro S/W.
3) Soil Sensor
Pull the Soil Sensor.
16. Sump Assembly
Remove 2 screws.
Remove the Sump Holder and push the
Sump Assembly down with pulling aside
Hook.
Be careful not to drop the Sump
Assembly to the bottom.
Drain Pump
Heater
Vario Motor
Micro
S/W
Soil
Sensor
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17. Holder Supporter, Tub Packing
and Hinge Supporter Assembly.
When you reassemble the Sump Assembly, be
careful not to kink, tear and take off the seals.
You must take off Stopper Roller(F117) by –
screwdriver to change the Rail Assembly.
(Stopper Roller could be broken while you are
taking off. So you should be careful not to be
hurt and have extra stopper rollers ready at
servicing at all times)
Rotate the screwdriver, after slide it into the
gap between Stopper Roller and Rail Roller.
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