Midea UR-LC46GE-DR User manual

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Service Manual
Applicable Models
Model Code
UR-LC46GE-DR
22033010000481
UR-LC66GE-DR
22033010000442
UR-LC96GE
22033010000441
(The picture is only for reference, and specific appearance and configuration are subject to the real product)
Prepared by
R&D：Chen Feixiang
Reviewed by
QA：Wang Tao
SVC：Zhang Kun
Approved by
R&D：Zhang Huawei
SVC：Guang Taoshuai

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Important Safety Notice
The Maintenance Manual is only for the use of maintenance personnel with certain experience and background
in electrical, electronic and mechanical field.
Any attempt to repair main devices may lead to personal injury and property loss.
Manufacturers or distributors are not responsible for the content of the Manual and interpretation thereof.
Midea Refrigerators
Technical Maintenance Manual
Copyright @2016
All rights reserved. Replication of all or part of the Manual in any forms shall not be allowed without written
approval by the Overseas Sales Corporation of Midea Refrigerators.

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Contents
1.Safety Warning Code................................................................................................................................. 5
1.1Warning for operation safety........................................................................................................... 5
1.2Safety instruction for refrigerant..................................................................................................... 8
2.Description for product features................................................................................................................ 9
3.Installation and commissioning............................................................................................................... 10
3.1Handling........................................................................................................................................ 10
3.2 Door Disassembly and Assembly（None）................................................................................ 10
3.3 Installation location...................................................................................................................... 10
3.4Leveling of the refrigerator ........................................................................................................... 11
3.5Door reversal................................................................................................................................. 11
3.6Installation of handle（None）.................................................................................................... 13
3.7 Installation of door lock(None).................................................................................................... 13
3.8 Adjustment to level the door（None）........................................................................................ 13
4.Terms....................................................................................................................................................... 13
4.1 Definition of model （None）..................................................................................................... 13
4.2Location of nameplate................................................................................................................... 13
5.Product specification............................................................................................................................... 14
5.1 Type specification（None）........................................................................................................ 14
5.2 Electrical parameters.................................................................................................................... 14
5.3Inside temperature......................................................................................................................... 15
5.4Defrosting parts（None）............................................................................................................ 15
5.5Circuit diagram.............................................................................................................................. 15
6.Internal view and dimension ................................................................................................................... 17
6.1Main parts and their names ........................................................................................................... 17
6.2External dimension........................................................................................................................ 17
7.Refrigerating piping system and circulating route of cooling air）........................................................ 19
7.1 Refrigerating piping system ......................................................................................................... 19
7.2Circulating route of cooling air..................................................................................................... 19
8.Dismantling of parts................................................................................................................................ 20
8.1 Parts on the door........................................................................................................................... 20
8.2Parts inside the wine cabinet......................................................................................................... 20
8.3Light system.................................................................................................................................. 21
8.4Air duct components refrigeratingchamber and fan motor............................................................ 21
8.5Air duct components in freezing chamber and fan motor(None).................................................. 22
8.6Evaporator and temperature sensing system ................................................................................. 22
8.7Compressor case............................................................................................................................ 24
8.9 Bar counter(None)........................................................................................................................ 27
8.10 Water dispenser(None)............................................................................................................... 27
8.11Ice maker(None).......................................................................................................................... 27
9. Function and operation........................................................................................................................... 28
9.1operation panel.............................................................................................................................. 28

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9.2Temperature control ...................................................................................................................... 28
9.3Alarm(None) ................................................................................................................................. 29
9.4Failure code and solutions............................................................................................................. 29
9.5Defrost function............................................................................................................................. 29
9.6Compressor fan control (None)..................................................................................................... 29
9.7Self-diagnosis (None).................................................................................................................... 29
10.Circuit description................................................................................................................................. 30
10.1 Power Supply ............................................................................................................................. 30
10.2Door trip test circuit(None)......................................................................................................... 30
10.3Temperature test circuit............................................................................................................... 30
10.4Fan motor circuit of the freezing chamber(None)....................................................................... 31
10.5Refrigerator fan motor circuit (None)......................................................................................... 31
10.6Condensing fan motor circuit (None).......................................................................................... 31
10.7Damper motor circuit (None)...................................................................................................... 31
10.8Resistance value of the sensor (R/T)........................................................................................... 31
11.Trouble shooting Method...................................................................................................................... 32
11.1No cooling................................................................................................................................... 32
11.2No working of compressor.......................................................................................................... 33
11.3Inside frosting, no defrosting....................................................................................................... 34
11.5Lights inside the refrigerator don’t light up................................................................................. 36
11.6Air duct not operated(None)........................................................................................................ 36
11.7Fan failure（None）................................................................................................................... 36
11.8Defective defrost circuit（None）.............................................................................................. 36
11.9Noise............................................................................................................................................ 36
12. Figures and details of repair parts(Documents are provided separately) ............................................. 37
12.1Figures......................................................................................................................................... 37
12.2List of parts and components....................................................................................................... 37
13Appendix:............................................................................................................................................... 37
13.1Electrical Schematic Diagram..................................................................................................... 37
13.2Refrigerator maintenance tooling and equipment and material................................................... 37

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1.Safety Warning Code
1.1Warning for operation safety

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1.2Safety instruction for refrigerant

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2.Description for product features
This product is provided with following features:
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)
1) Electronic temperature control, more accurate.
2) Advantageous touch control for users.
3) Slide-out wire shelf (Glass shelf optional)
4) Reserved handle

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3.Installation and commissioning
3.1Handling
1) Protect the refrigerator in moving it
Same as shown as left photo, please move it by
handcart with cushion
2) Remove all packing materials and bottom
cushion, then move into house for placement
3) After moving it to appropriate location, wait for
2 hours before power on.
3.2 Door Disassembly and Assembly（None）
The refrigerator door needs to be dismantled if it cannot enter the room in the whole.
3.3 Installation location
Location that is easy for ventilation shall be
chosen to facilitate heat dissipation, enhance
its performance and reduce the energy
consumption.

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3.4Leveling of the refrigerator
If the refrigerator cannot be placed steadily,
adjust the footing to level it.
3.5Door reversal
Step 1: Disassemble the upper knuckle
guard, discharge the right tightening
screws (3 screws) fixing the hinge and
dismantle 3 plastic rivets on the left
Step 2: Uplift the door slightly. Do not
place the door on the hard surface, avoid
scratching the glass.
Knuckle guard
Screw
Hinge
Shaft sleeve
Plastic rivet

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Step 3: Disassemble stop block and lamp
switch of the door, rotate the door for
180°and assemble lamp switch and stop
block disassembled.
Step4: Move the hinge axis of upper
hinge from original axle hole to the
corresponding hole
Step5: Remove the screws fastening the
lower hinge on the right side of the case
and the plastic rivets on the left corner of
the case, and install the plastic rivets in
the original hole sites of screws.
Step 6: Move the shaft of lower hinge
from original hole site to the
corresponding hole site

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Step 7: Install the adjusted lower hinge
on the left corner of the case and use the
plastic rivets to fill the vacancy of
original location of bolts
Step 8: Install the door on the lower
hinge on the left corner of the case to
maintain the door horizontal, fasten
screws, improve knuckle guard and
install the plastic rivets in the original
location of screws.
3.6Installation of handle（None）
3.7 Installation of door lock(None)
3.8 Adjustment to level the door（None）
4.Terms
4.1 Definition of model （None）
4.2Location of nameplate
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)

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5.Product specification
5.1 Type specification（None）
5.2 Electrical parameters
Product Name
UR-LC46GE-DR
UR-LC66GE-DR
UR-LC96GE
Product Code
22033010000481
22033010000442
22033010000441
Name
Item
Type
Specification
Specification
Specification
Compressor
Compressor
/
FZ40E1J
FZ40E1J
EZ50E1E-U
Starter
PTC
QP2-4R7
QP2-4R7
QP2-4R7
Overload
protector
OLP
DRB17N61A1
DRB17N61A1
DRB26T61A1
Winding
resistance of
compressor
wiring
terminal
Rmc:14.4±7%Ω
Rsc: 9.5±7%Ω
Rms=Rmc+Rsc
(20℃)
Rmc:14.4±7%Ω
Rsc: 9.5±7%Ω
Rms=Rmc+Rsc
(20℃)
Rmc:10.50±7%Ω
Rsc: 14.07±7%Ω
Rms=Rmc+Rsc
(20℃)
Motor
Fan motor
of the
freezing
chamber
/
/
/
/
Ventilation
door of the
refrigeratin
g chamber
/
/
/
/
Condensati
on fan
/
/
/
/
Light inside
the
refrigerator
Lights
inside the
refrigeratin
g chamber
LED
12V/0.6W
12V/0.6W
12V/0.6W
Switch of
the
refrigerator
door
/
/
/
/
Indicator
lamp
/
/
/
/

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5.3Inside temperature
Temperature tolerance ≤ 2°C
Compartment
The highest (°C)
Lowest (°C)
Refrigerating
10
1
5.4Defrosting parts（None）
5.5Circuit diagram
UR-LC46GE-DR_22033010000481
UR-LC66GE-DR_22033010000442

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UR-LC96GE_22033010000441

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6.Internal view and dimension
6.1Main parts and their names
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)
1.Temperature control panel
2.Fan
3.Beverage shelf
4.Guardrail
6.2External dimension
Front view
Side view
Down view
Open Door

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Maximum open angle of door(135°)
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)

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7.Refrigerating piping system and circulating route of cooling air）
7.1 Refrigerating piping system
1Compressor→2Exhaust transition pipe→3condenser→4Dry filter →5Capillary tube→ 6Evaporator→7Return
transition pipe→1Compressor
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)
7.2Circulating route of cooling air

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8.Dismantling of parts
8.1 Parts on the door
Door seal
Door seal is installed into door liner
groove.
1）Open the wine cabinet door;
2）Take the door seal ①out of door liner.
8.2Parts inside the wine cabinet
Beverage shelf
1）Lift up the beverage shelf with a proper
force and pull it out towards yourself.
Guardrail
1) Pull the guardrail out with a proper force.