LG LDF5545ST Manuale utente
DISHWASHER
SERVICE MANUAL
NOTE
For Authorized Service Technician
MODEL : LDF5545ST
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
For Authorized Service Technician
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CONTENTS
1. CAUTION ............................................................................................................................................................................ 4
2. SPECIFICATIONS ........................................................................................................................................................... 5
3. FEATURES & TECHNICAL EXPLANATION ...................................................................................................... 6
4. PARTS NAME .................................................................................................................................................................. 13
5. PROGRAM CHART ....................................................................................................................................................... 14
6. HOW TO DISASSEMBLE ........................................................................................................................................... 18
7. TROUBLE SHOOTING METHODS ......................................................................................................................... 28
7-1. TROUBLE SHOOTING ACCORDING TO DISPLAY ERROR MESSAGE .................................... 28
7-2. TROUBLE SHOOTING METHODS .............................................................................................................. 30
7-3. TROUBLE DIAGNOSES AND REPAIR BY SYMPTOM ...................................................................... 41
8. INSTALLATION INSTRUCTION ............................................................................................................................... 44
9. EXPLODED VIEW .......................................................................................................................................................... 53
10. WIRING DIAGRAM .................................................................................................................................................... 63
10-1. WIRING DIAGRAM ...................................................................................................................................... 63
10-2. MAIN PCB ........................................................................................................................................................ 64
10-3. DISPLAY PCB .................................................................................................................................................. 65
For Authorized Service Technician
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- 4-
DISCONNECT POWER SUPPLY LINE 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 !
For Authorized Service TechnicianFor Authorized Service Technician
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2. SPECIFICATION
ITEM SPECIFICATION
Rated Voltage / Frequency AC 120V/60Hz
Installation Built-In
Place Settings 15
Product Dimension(in) 23 3/4"*24 ⅝"*33 ⅝"
Product Weight(lbs) 72~82lbs
Door Color White, Black, Stanless
Tub Material Stainless Steel
Control Electronics
Rated Power(Watt) 1,350
Heater Power(Watt) 1,200
Programs 10 (XD4&5 : 9)
Upper Rack Position Adjustable
Lower Rack Fold down
Water Consumption 9.4 ~ 20.5 (Normal)
Power Consumption(kWh/year) 258 (Nomal)
Operating Time (min) 110 ~ 150 (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)
For Authorized Service Technician
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3. FEATURES & TECHNICAL EXPLANATION
PRODUCT FE
ATURES
TrueSteam™ Technology (not available on all models)
dishes.
QuadWash™ System
Multi-Motion lower spray arm shoots water in various directions and at optimized intensities to reach every area of the tub.
This system provides more powerful and complete cleaning coverage.
Inverter Direct Drive Motor
LG's experience in motor technology results in extraordinary functionality, with advanced features like the Dual Zone option,
The simple design and high build quality of the motor make it so reliable that it's covered for 10 years under the warranty.
EasyRack Plus
various shapes and sizes.
Hybrid Drying System
and gentle care for dishes.
Smart ThinQ™
Download the new LG smart phone app to set options, self-diagnose and troubleshoot problems with the appliance, and
other useful features. Some of these functions use Wi-Fi or NFC (Near Field Communication) technology and require an
NFC-equipped smart phone.
For Authorized Service TechnicianFor Authorized Service Technician
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3. FEATURES & TECHNICAL EXPLANATION
LDF5545ST
Control Panel
For Non-Steam Models
13
2
6
4 5
1
Power
Press the Power button to turn power on and
dishwasher powers off.
turns off for purposes of safety and economy.
off for safety.
automatically and resume the cycle.
2
Rinse Aid Icon
This icon illuminates when the rinse aid level is low
.
The LED automatically shuts of
f when the rinse aid is
3
Digital Display
The digital display on the control panel shows the
ESTIMA
TED cycle time. When the dishwasher is
estimated time to complete those selections. During
operating time.
NOTE
The estimated time shown on the display does not
If Delay Start
delay time in hours.
Cycle time may vary depending on the soil level of
your load.
4
Control Lock
The Control Lock feature helps prevent settings from
being changed during a cycle. Selecting this feature
Power
on the control panel. This feature does not lock the
door.
Press and hold Dual Zone for three seconds to
activate or deactivate Control Lock.
5
Cancel
The drain pump activates and the cycle cancels.
turns off.
Press and hold Start for three seconds to activate.
6
Start
the door within four seconds or close the door and
press Start.
Beep On/Off
Half Load button for three seconds. The error alert
sound can not be turned off.
Connect (for Wi-Fi models)
When the appliance is connected to the internet
Press and hold Delay Start for approximately three
seconds to connect to the network.
For Authorized Service Technician
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For Steam Models
13
2
6
4 5
1
Power
Press the Power button to turn power on and
dishwasher powers off.
turns off for purposes of safety and economy.
off for safety.
automatically and resume the cycle.
2
Rinse Aid Icon
This icon illuminates when the rinse aid level is low
.
The LED automatically shuts of
f when the rinse aid is
3
Digital Display
The digital display on the control panel shows the
ESTIMA
TED cycle time. When the dishwasher is
estimated time to complete those selections. During
operating time.
NOTE
The estimated time shown on the display does not
If Delay Start
delay time in hours.
Cycle time may vary depending on the soil level of
your load.
4
Control Lock
The Control Lock feature helps prevent settings from
being changed during a cycle. Selecting this feature
Power
on the control panel. This feature does not lock the
door.
Press and hold Dual Zone for three seconds to
activate or deactivate Control Lock.
5
Cancel
The drain pump activates and the cycle cancels.
turns off.
Press and hold Start for three seconds to activate.
6
Start
the door within four seconds or close the door and
press Start.
Beep On/Off
Half Load button for three seconds. The error alert
sound can not be turned off.
Connect
When the appliance is connected to the internet
Press and hold Delay Start for approximately three
seconds to connect to the network.
For Authorized Service TechnicianFor Authorized Service Technician
- 9 -
Cycles
Select your desired cycle.
Auto
soil toughness and is optimized to achieve the best
cleaning.
of steam.
Heavy
This cycle is for heavily soiled dishes and dishes with
hardened on soil.
The Heavy cycle defaults to the
strongest spray intensity and uses it to wash heavily
soiled dishes.
of steam.
Delicate
china and stemware.
of steam.
Refresh (Steam Models)
This cycle freshens up and warms dishes that have
been unused for a long time.
Do not use detergent when using this cycle.
Normal
Select the
Night Dry option if leaving dishes
overnight. Press and hold
Extra Dry for three
seconds to activate Night Dry
.
T
urbo
This cycle will clean heavily soiled dishes in an hour
using slightly more energy and water
. Select the
Extra Dry
options for better drying.
Download Cycle
Use a dedicated cycle downloadable via Wi-Fi or
NFC.
Machine Clean
This cycle is for cleaning the inside of the dishwasher.
Use the cycle without dishes in the machine. It
dirt. Add citric acid or another cleaning agent for more
effective results.
Press and hold Heavy for three seconds to activate.
NOTE
The Machine Clean
Delicate button for three seconds.
Rinse
This cycle is a quick rinse for dishes that will not be
washed immediately. The cycle rinses dishes that
have excess soil to soften dried on residue. Rinsing
the dishes helps prevent odors in the dishwasher. No
detergent should be used.
Press and hold Normal for three seconds to
activate.
Express
This cycle will quickly clean lightly soiled dishes.
(Time : 33 minutes) Select the Extra Dry option or
another cycle for better drying.
Press and hold Turbo for three seconds to activate.
NOTE
drying or have a shortened dry time. For better
cycles or select a different cycle.
For Authorized Service Technician
- 10 -
Options
Select the desired cycle button and then select the
options for that cycle.
Dual Zone
This option automatically sets the spray intensity to
soft for the upper spray arm and strong for the lower
spray arm. Place heavily soiled dishes like plates and
bowls in the lower rack and lightly soiled dishes like
cups and small plates in the upper rack to get the
best results.
Half Load
This option washes intensively by selecting the upper
or lower rack to save energy and time. By pressing
the
Half Load and the
cancellation of the Half Load option are available.
Energy Saver
This option saves energy by reducing the wash
and rinse temperatures. W
ash time is increased to
maintain wash performance. Do not use this cycle
with heavily soiled dishes.
Pre-Steam (Steam Models)
This option adds steam at the start of the cycle to
improve wash performance.
High Temp
Raises the main wash temperature to improve
cleaning.
Extra Dry
Select the Extra Dry option for better drying
performance. This option adds 20 minutes of extra
drying time to the cycle and raises the heated rinse
temperature.
Night Dry
Dishes are often left in the dishwasher overnight after
the cycle ends. This can result in the steam inside
Night Dry option runs the ventilation fan periodically
to help vent the steam from the tub.
Press and hold Extra Dry for three seconds to
activate.
Delay Start
The Delay Start feature delays the start of a selected
cycle. Each time the Delay Start
the delay time increases by an hour. The delay
increments.
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