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Service Manual
Applicable Model
Model Code
CE-BC93CM-AQ
22031010000982
CE-BC93CM-ST
22031010000245
UR-BC93CM-ST
22031010000482
UR-BC93CM-ST
22031010000561
CE-BC93CM-ST
22031010000242
SR-BC93CM-UT
22031010000243
CE-BC93CM-ST
22031010001261
CE-BC93CM-ST
22031010001381
UR-BC93CM-ST
92031010Z00004
UR-BC93CM-ST
92031010Z00005
UR-BC93CM-ST
92031010Z00006
CE-BC93CM-ST
92031010Z00008
CE-BC93CM-ST
92031010Z00010
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)
Prepared by
R&D: Yng Huiqun
Reviewed by
QA: Wang Tao
SVC: Zhang Kun
Approved by
R&D: Tang Tao
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
3.2DISASSEMBLY (NONE) .................................................................................................................... 10
3.3 INSTALLATION LOCATION .............................................................................................................. 10
3.4 LEVELING OF THE REFRIGERATOR .................................................................................................. 10
3.5CHANGE THE DOOR OPENING DIRECTION ........................................................................................ 11
3.6 INSTALLATION OF HANDLE(NONE) ................................................................................................ 12
3.7 INSTALLATION OF DOOR LOCK(NONE) ........................................................................................... 12
3.8 ADJUSTMENT TO LEVEL THE DOOR(NONE) .................................................................................... 12
3.9 ADJUSTMENT TO SHELVES(NONE) ................................................................................................. 12
4.TERMS ........................................................................................................................................ 13
4.1 DEFINITION OF MODEL(NONE) ...................................................................................................... 13
4.2LOCATION OF NAMEPLATE .............................................................................................................. 13
5.PRODUCT SPECIFICATION .................................................................................................... 14
5.1 TYPESPECIFICATION(NONE) .......................................................................................................... 14
5.2 ELECTRICAL PARAMETERS ............................................................................................................. 14
5.3REFRIGERATING TEMPERATURE ...................................................................................................... 16
5.4DEFROSTING PARTS(NONE) ............................................................................................................ 16
5.5CIRCUIT DIAGRAM.......................................................................................................................... 16
6.INTERNAL VIEW AND DIMENSION ...................................................................................... 18
6.1MAIN PARTS AND THEIR NAMES ...................................................................................................... 18
6.2EXTERNAL DIMENSION ................................................................................................................... 18
7.REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR7.1 REFRIGERATING
PIPING SYSTEM .................................................................................................................................... 21
7.2CIRCULATING ROUTE OF COOLING AIR(NONE)................................................................................ 21
8. DISMANTLING OF PARTS ...................................................................................................... 22
8.1 PARTS ON THE DOOR ...................................................................................................................... 22
8.2 PARTS INSIDE THE REFRIGERATOR ................................................................................................. 22
8.3 LIGHT SYSTEM ............................................................................................................................... 23
8.4AIR DUCT COMPONENTS REFRIGERATINGCHAMBER ........................................................................ 23
8.5AIR DUCT COMPONENTS IN FREEZING CHAMBER AND FAN MOTOR.................................................. 23
8.6EVAPORATOR AND TEMPERATURE SENSING SYSTEM ....................................................................... 23
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8.6COMPRESSOR CASE ........................................................................................................................ 24
8.7DISPLAY AND MAIN CONTROL PANEL(NONE) .................................................................................. 26
8.8 BAR COUNTER(NONE) ................................................................................................................... 26
8.9 WATER DISPENSER(NONE) ............................................................................................................ 26
8.10 ICE MAKER(NONE) ...................................................................................................................... 26
9. FUNCTION AND OPERATION ................................................................................................ 27
9.1OPERATION PANEL .......................................................................................................................... 27
9.2TEMPERATURE CONTROL ................................................................................................................ 27
9.3GIVE AN ALARM(NONE) ................................................................................................................. 27
9.4FAILURE CODE AND SOLUTIONS(NONE) ......................................................................................... 27
9.5DEFROST FUNCTION ....................................................................................................................... 27
9.6COMPRESSOR FAN CONTROL(NONE) .............................................................................................. 27
9.7SELF-DIAGNOSIS (NONE) ................................................................................................................ 27
10.CIRCUIT DESCRIPTION ........................................................................................................ 28
10.1 POWER SUPPLY(NONE) ................................................................................................................ 28
10.2 TEST CIRCUIT FOR DOOR SWITCH(NONE) ..................................................................................... 28
10.3 TEMPERATURE TEST CIRCUIT(NONE) ........................................................................................... 28
10.4FREEZER CHAMBER FAN MOTOR CIRCUIT (NONE) ......................................................................... 28
10.5REFRIGERATING CHAMBER FAN MOTOR CIRCUIT (NONE) .............................................................. 28
10.6CONDENSATION FAN CIRCUIT (NONE) .......................................................................................... 28
10.5 FAN MOTOR CIRCUIT OF THE VENTILATION DOOR(NONE) ............................................................ 28
10.6RESISTANCE VALUE OF THE SENSOR (R/T) (NONE) ....................................................................... 28
11.TROUBLESHOOTING METHOD........................................................................................... 29
11.1 NOT COOLING .............................................................................................................................. 29
11.2 NOT WORKING OF COMPRESSOR .................................................................................................. 30
11.3 -THERMOSTAT MALFUNCTION-UNDERCOOLING........................................................................... 31
11.4 LIGHT IS NOT ON .......................................................................................................................... 31
11.5 NOISE .......................................................................................................................................... 32
12. FIGURES AND DETAILS OF REPAIR
PARTS(DOCUMENTS ARE PROVIDED SEPARATELY) .......................................................... 33
12.1FIGURES ....................................................................................................................................... 33
12.2LIST OF PARTS AND COMPONENTS ................................................................................................. 33
13APPENDIX: ................................................................................................................................ 34
13.1ELECTRICAL SCHEMATIC DIAGRAM(NONE) ................................................................................. 34
13.2REFRIGERATOR MAINTENANCE TOOLING AND EQUIPMENT AND MATERIAL ................................. 34
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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)Mechanical temperature controlManual defroststeel wire guardrailChange the door opening
direction
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3.Installation and commissioning
3.1Handling
1) Protecttherefrigeratorinmovingit
Sameasshownasleftphoto,pleasemoveitbyhandcartwi
thcushion
2) Removeallpackingmaterialsandbottomcushion,then
moveintohouseforplacement
3) Aftermovingittoappropriatelocation,waitfor2hoursbe
forepoweron.
3.2Disassembly (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.
3.4 Leveling of the refrigerator
If the refrigerator cannot be placed steadily,
adjust the footing to level it.
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3.5Change the door opening direction
1) Remove the plastic covering from
the top door hinge.
2) Unscrew the two screws from the
bottom bracket. Remove the foot
from opposite side.
3) Place to one side.
4) Slide the Appliance door down
about 15cm and off the top hinge
pin and lift away from the
Appliance.
5) Remove the two screws from top
bracket and replace on the
otherside. You will need to first
remove the plastic caps from the
other side.
6) Slide the Appliance door back on to
the Top hinge, making sure its the
right way up. Screw the bottom
hinge into place on the new side.
Replace the other foot on the other
side. Replace the plastic covering by
clicking back into position on the
door hinge.
7) Check that the door is aligned
horizontally and vertically and that
the seals are closed on all sides
before finally tightening the bottom
hinge.
Re-adjust the levelling feet.
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3.6 Installation of handle(None)
3.7 Installation of door lock(None)
3.8 Adjustment to level the door(None)
3.9 Adjustment to shelves(None)
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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 Typespecification(None)
5.2 Electrical parameters
Product Name
CE-BC93C
M-AQ
CE-BC93C
M-ST
UR-BC93A-
S
UR-BC93A-
S
CE-BC93C
M-ST
SR-BC93C
M-UT
Product Code
22031010
000982
2203101000
0245/
92031010Z0
0008/
92031010Z0
0010
2203101000
0482/
92031010Z0
0004/
92031010Z0
0005/
92031010Z0
0006
22031010
000561
22031010
000242
22031010
000243
Name
Item
Type
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Compressor
Compressor
/
AZ70CY1
SZ55C1J
FZ40C1J-U
FZ40C1J-U
SZ55C1J
SZ45C1J-N
Starter
PTC
TY-QZ-002
/QPE2-A15
MD3
8EA19C1/
QP2-15/Q
P2-15
QP2-4R7
QP2-4R7
8EA19C1/
QP2-15/Q
P2-15
8EA19C1/Q
P2-15/QP2
-15
Overload
protector
OLP
3TM104NF
1/
DRB15N61
A2
3TM117TF
2/DRB12T
61A1
DRB20T61
A1
DRB20T61
A1
3TM117TF
2/DRB12T
61A1
3TM129TF2
/DRB13T61
A1
Capacitor
/ / / / / / /
Winding
resistance of
compressor
wiring
terminal
Rmc:2.5-1
4.5Ω
Rsc:7.4-2
1.4Ω
Rms=Rmc+
Rsc
Rmc:40.25
±7%Ω
Rsc:15.89
±7%Ω
Rms=Rmc+R
sc
Rmc:2.5-
14.5Ω
Rsc:7.4-2
1.4Ω
Rms=Rmc+
Rsc
Rmc:2.5-1
4.5Ω
Rsc:7.4-2
1.4Ω
Rms=Rmc+
Rsc
Rmc:40.25
±7%Ω
Rsc:15.89
±7%Ω
Rms=Rmc+R
sc
Rmc:34.24
±7%Ω
Rsc:16.53
±7%Ω
Rms=Rmc+R
sc
Motor
Fan motor
of the
freezing
chamber
/ / /
/ / /
/
Ventilation
door of the
refrigeratin
g chamber
/ / /
/ / /
/
Condensatio
/ / /
/ / /
/
Service Manual, 2016-12
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n fan
Lights
inside the
refrigerator
Lights
inside the
freezing
chamber
/ / /
/
/
/
/
Lights
inside the
refrigeratin
g chamber
/
Incandesce
nt lamp
Incandesce
nt lamp
None
Incandesce
nt lamp
None
None
Switch of
the
refrigerator
door
/
sector
sector
None
sector
None
None
Product Name
CE-BC93C
M-ST
CE-BC93C
M-ST
/ / /
/
Product Code
22031010
001261
22031010
001381
/ / /
/
Name
Item
Type
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Specificati
on
Compressor
Compressor
/
B60CBL
B60CBL
/ / /
/
Starter
PTC
QP2-15A
QP2-15A
/ / /
/
Overload
protector
OLP
DRB135P6
1A2
DRB135P6
1A2
/ / /
/
Capacitor
/ / / / / / /
Winding
resistance of
compressor
wiring
terminal
Rmc:47.0
±7%Ω
Rsc:23.5
±7%Ω
Rms=Rmc+
Rsc
Rmc:47.0
±7%Ω
Rsc:23.5
±7%Ω
Rms=Rmc+R
sc
/ / /
/
Motor
Fan motor
of the
freezing
chamber
/ / / / / / /
Ventilation
door of the
refrigeratin
g chamber
/ / / / / / /
Condensati
on fan
/ / / / / / /
Lights
inside the
refrigerator
Lights
inside the
freezing
/ / / / / / /
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chamber
Lights
inside the
refrigeratin
g chamber
/
Incandesce
nt lamp
None
/ / /
/
Switch of
the
refrigerator
door
/
sector
None
/ / /
/
5.3Refrigerating temperature
Temperature tolerance ≤ 3
o
C
Compartment
The highest (
o
C)
Lowest (
o
C)
Freezing
-10
-3
Refrigerating
10
0
Variable temperature
/
/
5.4Defrosting parts(None)
Defrosting period
Initial defrosting period
Normal defrosting period
/
/
Defrosting sensor
/
/
Defrosting temperature
controller
/
/
Thermal fuse
/
/
Defrosting heater in freezing
chamber
/
/
5.5Circuit diagram
BC93_22031010000982_22031010000245_22031010000561_22031010001261_92031010Z000
08_92031010Z00010
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BC93_22031010000482_22031010000242_22031010000243_22031010001381_
92031010Z00004_ 92031010Z00005_ 92031010Z00006
t
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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)
Refrigerator chamber
1.F door
2.Tray
3.Temp control assembly
4.Glass shelf
5.fruits and vegetables box
6.Steel wire guardrail
6.2External dimension
Front view
Side view
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Down view
Open Door
Maximum open angle of door（180°）
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(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 air7.1
Refrigerating piping system
Compressor→Condenser→Dry filter→Capillary tube→Evaporator→Suction tube→Compressor
(The picture is only for reference, and specific appearance and configuration are subject to the real
product)
7.2Circulating route of cooling air(None)
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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 refrigerator door;
2） Take the door seal ①out of door liner;
Door tray
None
Guardrail
1） Grab the Guardrail and squeeze it sideways
2） Pull out and remove from the refrigerator
8.2 Parts inside the refrigerator
Shelves
1）
Lift up the division plate with a proper force and pull it
out towards yourself;
Drawer
None
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8.3 Light system
Light
1、Remove the light cover
2、Remove the bulb
`
Light switch
There is a light switch on the side wall of the
refrigerating chamber.
Loosen the hook with small normal screwdriver and
pull out the switch until the wire connector reveals.
Pilot light
None
Fresh light
None
8.4Air duct components refrigeratingchamber
Air duct components refrigeratingchamber
None
8.5Air duct components in freezing chamber and fan motor
Disassembly and installation of Air duct
None
Fan motor of air duct
None
8.6Evaporator and temperature sensing system
Evaporator in freezing chamber
Components on the evaporator
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Defrost thermostat
Fuse
None
Defrost sensor
None
Defrost heater
None
Evaporator in refrigerating chamber
None
Components on the evaporator
None
Sensor
Sensor in freezing chamber
None
Sensor in refrigerating chamber
None
Sensor in Variable temperature chamber
None
ambient temperature senser
None
Thermostat
Without light
1. Remove the screw on the thermostat assembly
2. Remove the thermostat knob
3. Remove the thermostat
4. Remove the connector and replace the
thermostat.
Have a light
1.Remove the screw on the thermostat assembly
2.Loosen the thermostat knob and fastening screw,
and remove the thermostat box assembly
3.Remove the connector and replace the
thermostat.
8.6Compressor case
Piping system in the compressor case
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1.condenser
2.process pipe
3.suction pipe
4.dry filter
5capillary
Starter and protector of the compressor
1. Remove the screws
1） Two screws outside
2） One screw inside
2. Remove the clipping strip
Slowly pull it out
3. Remove the protective cover
1）Pry the protective cover slowly from the upper part,
2）Pull it out and remove it.
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4. Remove the starter and protector
Unplug the starter and protector (you can use a
screwdriver to pry it slowly)
5. The reverse process can complete installation.
/
8.7Display and main control panel(None)
Display control board
None
Main control board
None
8.8 Bar counter(None)
Disassembly and installation of bar counter
None
Disassembly and installation bar doorseal
None
8.9 Water dispenser(None)
Disassembly and installation of water valve
None
Disassembly and installation of water tank
None
8.10 Ice maker(None)
Disassembly and installation of ice maker
None
Disassembly and installation of water system
None
Disassembly and installation ice machine sensor
None
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9. Function and operation
9.1Operation panel
Direct cooling mechanical refrigerator, through the thermostat knob to adjust the stalls.
Have a light
Without light
9.2Temperature control
Turn the temperature control knob to MAX, the internal temperature of the refrigerator becomes
lower.
Turn the temperature control knob to MIN, the internal temperature of the refrigerator becomes
higher.
NOTE:Please adjusting and using between "MAX"and"MIN"
9.3Give an alarm(None)
9.4Failure code and solutions(None)
9.5Defrost function
Manual defrost
9.6Compressor fan control(None)
9.7Self-diagnosis (None)
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10.Circuit description
10.1 Power Supply(None)
10.2 Test circuit for door switch(None)
10.3 Temperature test circuit(None)
10.4Freezer chamber fan motor circuit (None)
10.5refrigerating chamber fan motor circuit (None)
10.6Condensation fan circuit (None)
10.5 Fan motor circuit of the ventilation door(None)
10.6Resistance value of the sensor (R/T) (None)
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11.Troubleshooting Method
11.1 Not cooling
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11.2 Not working of compressor
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11.3 -Thermostat malfunction-Undercooling
11.4 Light is not on
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11.5 Noise
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12. Figures and details of repair
parts(Documents are provided separately)
12.1Figures
12.2List of parts and components
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13Appendix:
13.1Electrical Schematic Diagram(None)
（Model：***）
13.2Refrigerator maintenance tooling and equipment and material
Tooling
No.
Name
Photo
Main Usage
1
Phillips screwdriver
screw assemble and disassemble
2
slotted screwdriver/scraper
screw and rivet assemble and
disassemble
3
Socket spanner 5/16″
hinge and compressor screw
assemble and disassemble
4
Sucker
display panel and air duct
cover disassemble
5
Allen wrench（2.8~4mm）
handle assemble and
disassemble
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6
Vise grip pliers
sealing process tube
7
Pipe cutter
pipe cutting
8
Knife
assistive tool
9
Nipper pliers
assistive tool
10
Capillary tube scissors
Shear capillary
Equipment
No.
Name
Photo
Main Usage
1
Vacuum pump
vacuum pumping
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2
Electronic scale
weighing refrigerant/gas
3
High pressure nitrogen with
piezometer
pipe and cooling
system(condenser, evaporator,
etc) impurities clean
4
Soldering gun
heating and welding
5
Quick coupling
connection process
pipelinevacuumorchargerefriger
antwillbeused.
6
hand leak detector
welding point leakage detect, if
no, use soap-suds
material
No.
Name
Photo
Main Usage
1
Process pipeline
Chargetherefrigerant
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2
Dry filter
Involving a system failure to be
replaced
3
Copper welding rod
tube welding
4
Refrigerant/gas
Add refrigerant to the system
5
Sealing tape
door fixing for reversible door
option
Midea Refrigerators
If you need to get detailed technical information from the manufacturer, please contact:
xxx@midea.com
Refrigeration Division
Overseas Sales Company
Address: No. 176, Jinxiu Avenue, Economic-Technological Development Area, Hefei, Anhui,
China
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