LG UD701KOG Series User manual

Dehumidifier
SVC MANUAL(Exploded View)
MODEL : UD701KOG*
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
TABLE OF CONTENTS
3SAFETY INSTRUCTIONS
3 IMPORTANT SAFETY INSTRUCTIONS
6PRODUCT OVERVIEW
6 Front
6 Back
7BEFORE USE
8OPERATION
8 Control Panel and Display
9 Dehumidifying
9 Setting the Timer
9 Safety Standby Light
9 Bucket Full Light
10 Checking the Filter
10 Auto Defrosting
10 Continuous Drainage Setup
11 Emptying the Water Bucket
12 MAINTENANCE
12 Cleaning the Exterior
12 Cleaning the Water Bucket
13 Cleaning the Air Filter
14 Storing the Product
15 TROUBLESHOOTING
16 Specification
17 SERVICE

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on the appliance. Always
read and follow all safety messages.
These words mean:
WARNING
Failure to follow the instructions could result in death or serious injury.
CAUTION
Failure to follow the instructions could result in personal injury or property damage.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock, scalding, or injury to persons when
using this appliance, follow basic precautions, including the following:
INSTALLATION
• Adhere to all industry recommended safety procedures including the use of long-sleeved gloves
and safety glasses.
• Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled, or
has missing or broken parts, including a damaged cord or plug.
• Do not, under any circumstances, cut or remove the third (ground) prong from the power cord.
• When installing or moving the appliance, be careful not to pinch, crush, or damage the power
cord.
• Keep packing materials out of the reach of children. Packaging material can be dangerous for
children. There is a risk of suffocation.
• Destroy the carton, plastic bag, and other packing materials after the appliance is unpacked.
Children might use them for play. Cartons covered with rugs, bedspreads, or plastic sheets can
become airtight chambers.
• Store and install the appliance where it will not be exposed to temperatures below freezing or
exposed to outdoor weather conditions.
• Do not damage, alter, excessively bend, twist, pull, pinch or heat the power cord.
• Call an authorized service technician to repair or immediately replace all power cords that have
become damaged. Do not use a cord that shows cracks or abrasion damage along its length or at
either end.
!
!
!
!
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or injure you and others. All safety
messages will follow the safety alert symbol and either the word WARNING or AUTION.

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
• Do not use multiple-outlet adaptors with this dehumidifier.
• Do not use the product if the outlet is damaged or loose.
• In the event of a gas leak (propane gas, LP gas, etc.) do not operate this or any other appliance.
Open a window or door to ventilate the area immediately.
• Do not disassemble, repair or modify the product.
• Do not store or use flammable gases or materials near the dehumidifier.
• This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by person responsible for their safety.
Do not allow children to play on or with the appliance. Close supervision of children is necessary when
the appliance is used near children.
OPERATION
• Read all instructions before using the appliance and save these instructions.
• Do not tamper with controls.
• If the product has been submerged, contact an LG Electronics customer information center for
instructions before resuming use.
• Push the power plug all the way into the wall outlet so that it is not loose.
• Do not grasp the power cord or touch the appliance controls with wet hands.
• Do not modify or extend the power cord.
• If the product makes a strange noise or emits a smell or smoke, pull the power plug out and
contact an LG Electronics customer information center.
• Avoid placing the dehumidifier or other heavy objects on top of the power cord.
• Do not use water to clean the dehumidifier.
• Keep the air inlet and outlet free from obstructions.
• Do not cover the power cord with a rug or carpeting.
Placing heavy objects on top of the cord could damage it.
• Do not place combustion appliances directly in the path of the dehumidifier’s airway.
Doing so could result in incomplete combustion or deformation by heat.
• Keep the product away from fire.
• Do not use the product in places where it could be splashed by water.
• Do not insert fingers, sticks etc. into the air inlet or outlet.
The fan is running at high speeds and could cause personal injuries.
• Do not repair or replace any part of the appliance. All repairs and servicing must be performed by
qualified service personnel unless specifically recommended in this owner's manual. Use only
authorized factory parts.
• California Safe Drinking Water and Toxic Enforcement Act
This product contains chemicals known to the State of California to cause cancer and birth defects or
other reproductive harm. Wash hands after handling.
• Connect to a properly rated, protected, and sized power circuit to avoid electrical overload.

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
CAUTION
To reduce the risk of injury to persons, malfunction, or damage to the product or property when
using the appliance, follow basic safety precautions, including the following:
INSTALLATION
• Use this appliance only for its intended purpose.
This product is not designed for preserving precision instruments, tableware or art works.
• Use the appliance only in a well-ventilated area.
Keep the area well ventilated, especially if also using a combustion appliance. Inadequate ventilation
reduces the oxygen level in the air.
• Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull
straight out from the outlet.
• Do not use the product in places where chemicals are used.
Chemicals and solvents dissolved in the air in places such as hospitals, factories, laboratories and hair
salons could cause product deformation and leaking, resulting in property damage.
• Turn off the dehumidifier and pull out the power plug before cleaning.
Wait for the fan to stop moving.
• Do not operate the dehumidifier without a filter.
Using the product without a filter could result in a reduced product lifespan, electric shock or injury.
OPERATION
• Do not use the product for preserving animals/plants, precision instruments, art works etc.
• Do not place vases or water jars on the dehumidifier.
• Turn off the dehumidifier and empty the water bucket before moving the dehumidifier.
• Pull out the power plug if you will not be using the product for an extended period.
• Do not use the product in a very small space such as a closet.
Poor ventilation could result in overheating or fire.
• Do not use wax, thinner or a strong detergent when cleaning. Wipe the product using a soft cloth.
Using inappropriate cleaning products could cause the product to become discolored or develop surface
flaws.
• Do not use the product in direct sunlight or rain.
• Do not touch the product with wet hands.
• Position the product on a firm, stable surface.
• Remove cable ties and extend power cord before use.
• Do not spray foreign substances or water on the product.
!

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
PRODUCT OVERVIEW
Front
Back
Power cord and plug may differ depending on the country where the product is purchased.
Air outlet
Display
Cover
Water bucket
Stores dehumidified water
Hose cover
Air filter
Air Inlet
Draws in air from room
and absorbs moisture
Power plug
Casters

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Indoor temperature and relative humidity affect dehumidification.
- Dehumidification is decreased if the temperature or relative humidity is low.
- The product does not operate unless the desired humidity level is lower than the current
humidity level.
This product operates at temperatures from 41 °F - 90 °F (5 °C - 32 °C).
- At temperatures of 32 °F (0 °C) or less, water freezes inside the product.
- At temperatures over 90°F (32 °C), the internal temperature of the product trips a protective
device which deactivates the product to avoid product damage.
When the dehumidifier is operating, the indoor temperature will rise.
- The dehumidifier does not have a cooling/heating function.
- Heat is generated during operation, so the room temperature may be increased by about 37 °F
(3 °C) depending on the usage conditions (indoor temperature, size of the room).
The compressor has a 3-minute delay before restarting.
- If the product is stopped and immediately restarted, to protect the compressor there is a
3-minute delay until the compressor restarts.
The product cannot be operated continuously for more than 23 hours.
After 23 hours of continuous operation, the compressor automatically shuts off for one hour to
prevent product damage. The compressor will restart after one hour. This Safety Standby function
is normal.
Install the product at least 11 13/16" (30 cm) from walls or other obstacles.
The product needs clearance for air intake and exhaust purposes.
There may be water in the drain water bucket before first use.
Water may remain in the drain water bucket from the product's outgoing inspection to check
operation. This is normal.
BEFORE USE

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
1 9 10
2 3 4 5 6 711 8
OPERATION
Control Panel and Display
1 Safety Standby light (red) After 23 hours of continuous operation, the red lamp
lights up for 1hour.
2 Power button Starts and stops the product.
3 Fan Speed control button Adjusts the fan speed and air volume.
4 Humidity display Displays the current humidity (25-90%) and the
humidity setting (30-80%).
5 Humidity control button Adjusts the humidity setting. Desired humidity levels
can be set in 5-percent increments from 30-80%.
6 Timer button
Sets a time for the product to automatically turn off.
Press the button repeatedly to increase the time until
shutoff in 1-hour increments up to 12 hours.
7 Check Filter light Lights up after 350 hours of operation. Check and
clean the filter.
8 Filter Reset button After cleaning the filter, press for three seconds to reset
operating time.
9 Bucket Full light Lights up when drain water bucket is full.
10 Auto Defrost light Lights up when the product is defrosting.
11 Timer On light Lights up when the Timer function is set.

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Dehumidifying
1Press to turn on the power.
- It takes 30 minutes of continuous operation to
reach the desired humidity level the first time
the product is used.
- The display shows the current humidity level.
2Press / to change humidity.
- The desired humidity level can be set in 5-
percent increments from 30-80%.
- The display shows the desired humidity level
while it is being set, then reverts to the current
humidity level after 5 seconds.
- The current humidity level is displayed in 5-
percent increments from 25-90%.
If the humidity level is outside the range, the
display continues to show either 25% or 90%.
3Press to change the fan speed.
The fan speed has two levels: low or high.
4Press to turn off the product.
Setting the Timer
1Press to turn on the power.
2Press to set the automatic shut off time.
- Press the button repeatedly to increase the
time until shut off in 1-hour increments up to
12 hours.
3Press to cancel the Timer function.
- Press the Timer button repeatedly until the
Timer light turns off.
Safety Standby Light
- After 23 hours of continuous operation, the red
Safety Standby light turns on for one hour and the
fan and compressor shut off to prevent product
malfunction.
- After an hour with the fan and compressor shut
off, the Safety Standby light turns off and the fan
and compressor automatically restart.
Bucket Full Light
- Empty the water bucket within three minutes of
the Bucket Full light turning on.
- After the light turns on, the fan operates for an
additional three minutes to remove remaining
condensed water and then the product shuts off.
- See Emptying the Water Bucket for further
instructions.
NOTE
!
Empty the drain water bucket before
setting the Timer function.
If the water bucket becomes full during the
Timer function, the Bucket Full light goes
on and dehumidification stops.
NOTE
!
• If the product is restarted immediately
after being shut down, to protect the
compressor there is a 3-minute delay
until the compressor begins operating.
• It is normal for the compressor to cause
the product to vibrate while starting or
stopping.

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Checking the Filter
Check and clean the filter when the Check Filter
light turns on.
1After 350 hours of operation, the Check Filter
light turns on. Check the filter and clean it if
necessary or wait 24 hours for the light to go
off automatically.
2After cleaning the filter, press and hold
for three seconds to reset the operating time.
Auto Defrosting
The Auto Defrost function automatically
removes any frost in the heat exchanger caused
by low indoor temperatures.
- The Auto Defrost light turns on while the product
automatically defrosts the heat exchanger.
- The compressor stops during the automatic
defrost function.
Continuous Drainage Setup
Items Needed:
3/4" (outer diameter) threaded garden hose nearby
sink or drain.
1Unplug the product. Turn the hose cover at
the back of the product counterclockwise to
open it.
2Remove the water bucket.
3Insert the garden hose in the drain hole at
the rear of the case.
4Turn the end of the garden hose clockwise to
attach it to the female connection behind the
water bucket. Firmly attach the hose to avoid
leaks. Hand tighten; then make an additional
1/8 turn with pliers.
5Reinstall the water bucket.
Lock
Continuous
drainage hose
NOTE
!
• The product does not work without the
water bucket installed.
• A hose for continuous drainage can be
purchased through the LG customer
information center.
CAUTION
Take care not to injure hands while connect-
ing drainage hose.
!

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Emptying the Water Bucket
1Gently pull the top handle of the water
bucket to remove the bucket from the
product.
2Lift off the cover of the water bucket.
3Pour out the water inside the water bucket.
4Put the cover back on the water bucket.
5Angle the bottom of the water bucket into
place first, then push the top into place.
Cover
Water bucket
handle
Water bucket
handle
Cover
Water bucket
handle
NOTE
!
• If the water bucket is removed immediately
after turning off the dehumidifier, the water
remaining in the heat exchanger may drip
inside the water bucket storage area. Remove
the water with a soft cloth.
• While cleaning, do not touch the water
detection device on the inside top of the water
bucket storage area.
• Clean the water bucket once a week during
use.
• If the ambient temperature is low, there is less
moisture in the air for the product to remove.
• Unplug the product before removing the water
bucket. If the bucket is removed while the
product is operating, the compressor stops.
The fan operates for another three minutes to
clear the remaining water inside the heat
exchanger and then also stops.
!
CAUTION
Watch pinch points to avoid injuring fingers
when installing the water bucket.
!

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Cleaning the Exterior
Wipe the exterior of the dehumidifier with a soft,
damp cloth.
- Do not spray water directly on the product. Doing
so may cause damage to the insulation or stains
on the surface of the product.
Use a vacuum cleaner or soft brush to remove
dust from the filter case.
Cleaning the Water Bucket
1Lift off the cover of the bucket.
2Empty the water bucket and use a soft cloth
to remove any remaining moisture inside it.
Soft cloth
CAUTION
Operating the product with the cover of the
water bucket missing or assembled improp-
erly may result in leaking.
!
CAUTION
Do not use materials such as thinners, ben-
zene, acid, or sponges to clean the product.
They may damage the surface of the prod-
uct.
!
MAINTENANCE

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Cleaning the Air Filter
1Release the two hooks at the right of
the filter case and swing it open to
remove it.
2Pull the center tab on the air filter to
remove it from the filter case.
3Clean the air filter with a vacuum
cleaner or soft brush.
- If the filter is very dirty, wash it in water
and a neutral detergent.
- Clean the air filter once a month.
4Bend the sides of the air filter inward
slightly to reinsert it. Make sure the
filter is seated under the tabs inside the
filter case.
5Align the hinges on the filter case with
the hinge openings on the product and
then swing the case to the right to
reattach the two hooks.
CAUTION
• Unplug the unit before cleaning it.
• Allow the filter to dry completely, out of
direct sunlight, before reinserting it in the
product. Operating the product with a
damp filter may cause product failure.
!
NOTE
!
Service calls to clean the air filter are not
covered under the product warranty.

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
Storing the Product
1Unplug the product.
2Empty the water bucket completely.
- Remove the lid from the water bucket and
use a soft cloth to wipe up any remaining
water in the bucket.
3Clean the filter.
- Let the filter thoroughly dry for several
hours in a shaded, well-ventilated area
before reinstalling it.
- Placing the filter in direct sunlight or near
a fire may cause product deformation.
4While the filter is drying, place the
dehumidifier out of direct sunlight in a
well-ventilated area and allow it to
thoroughly dry for several hours.
Reinstall the filter and cover the
dehumidifier before storing it in an
upright position.
(A dust cover for storing the dehumidifier is
not included.)

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Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
TROUBLESHOOTING
If the product does not function properly or does not function at all, check the following before
calling for service.
Call for service immediately in the following situations.
1. Power cord is too hot or damaged.
2. The product continues to operate when the water bucket is full, overflowing the bucket.
Problem Possible Cause Solutions
The product is not
running.
- Power plug not inserted correctly.
- Power outage.
- Water bucket not installed properly.
- Bucket Full light is on.
- Set humidity level is higher than room
humidity level.
- Insert the power plug.
- Check other appliances.
- Install the water bucket correctly.
- Empty the water bucket.
- Press the Power button when Auto
Defrost ends.
- Set the desired humidity level below the
current humidity level of the room.
There is little
dehumidification.
- Room temperature or humidity level is
too low.
- Air inlet or outlet is blocked.
- Check the target humidity.
- It is normal for less dehumidification to
take place in the winter and in dry areas.
- Remove the obstruction.
- Clean the filter.
Humidity does not
seem to decrease
much even though
the product is
running.
- Door or window is open.
- Room is too large for capacity of
dehumidifier.
- Product is placed near a steam-
producing appliance.
- Close the door/window.
- Use the dehumidifier in an adequately
sized room.
- Do not use the dehumidifier near
appliances which produce steam.
The displayed
humidity level is
incorrect.
- The air intake and exhaust of the
dehumidifier are obstructed.
- The dehumidifier is placed too far from
the humid area.
- Keep the dehumidifier away from walls
or other large obstructions.
- The dehumidifier’s display shows the
humidity level in its current position,
which may be different from the level in
other positions.
Water is dripping
from within the
product when water
bucket is removed.
- Water bucket was removed while the
product was in operation.
- Turn off the product before removing the
water bucket.
Clean off any drips with a soft cloth.

Performance Unit Model
UD701KOG1
Voltage Ø/V/Hz 1/115/60
Noise Level (High / Low) dB(A) 50/49
Dehumidifing capacity (26.7℃ / RH60%) Pints/24h 70
Watts W 745
Dimensions (W x H x D) mm 427 x 665 x 321
Net Weight kg 21.7
Refrigerant (R410A) g 215
Specification
Copyright ©2016 LG Electronics. Inc. All right reserved.
Only for training and service purposes LGE Internal Use Only
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SERVICE
How to disassemble/assemble
1. Water bucket, air filter
1) Press stop button and pull out the plug.
2) Gently pull the top handle of the water bucket to
remove the bucket from the product.
3) Lift off the cover of the water bucket.
4) Release the two hooks at the right of the filter case
and swing it open to remove it.
5) Pull the center tab on the air filter to remove it from
the filter case.
Cover
Water bucket
handle
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2. Handle
1) Press 2 places at the center top/bottom of the
handle at the same time and remove in the
direction of the arrow.
3. Side cover
1) Unscrew the screws at the bottom of the side
cover. (2 places)
2) Lightly press the front case and the backside
case, and remove each of the fixing part of
the side cover hung on the left and right side.
While pulling the bottom of the side cover in
the direction of the arrow, remove by lightly
hitting the side cover top part with fist.
4. Top cover and backside case
1) Unscrew the screws fixing the top cover.
(2 places) (Caution) If you pull them as they
are, there.
Remove the top cover in the direction of the
arrow.
2) Unscrew the screws fixing the backside case.
(4 places)
(Caution) If you pull them as they are, there is
a risk of damaging the hooks locking the
backside case and the front case at which the
handle is mounted.
Remove the backside case in the direction of
the arrow.
Screw
locking
locations
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5. Display PCB and Front case
1) Remove harnesses connected to the PCB. (3
places)
2) Remove 1 harness connected to MAIN PCB.
3) Remove by unscrewing the screw to remove dis-
play PCB and top cover (4 places)
4) Remove by unscrewing the display PCB assem-
bly screws fixed to the display PCB. (5 places)
5) Unscrew the screws fixing the front case.
(5 places)
6. Main circuit PCB
1) As in the figure, unscrew the screws fixed to the
cover. (2 places)
2) Remove the cover.
3) Remove the connections to the main circuit PCB
one by one.
4) Unscrew the screws fixing the main circuit PCB.
(4 places)
5) Afterwards, unscrew the screws sequentially to
remove the cover stepwise.
- At the last steel cover, 1 grounding line from the
power cord is fixed with 1 screw.
(When it is assembled in the reverse order, be
careful not to omit the locking the above
grounding line.)
6) After replacing the main circuit PCB, assemble in
the reverse order.

7. Housing, orifice, motor
1) Unscrew the screws combining the housing and
the orifice.
2) Remove the housing and the orifice from the
drain pan main unit.
3) Remove the housing and the orifice.
4) Unscrew the nuts fixing the fan and the motor,
and remove the fan.
5) Unscrew the screws fixing the mount motor
(4 places), and remove the mount.
6) Carefully remove the motor.
7) Replace the parts to replace, and assemble in
the reverse order of the above.
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