Midea COMPACT Series Manuale utente

Service Manual_2018-V1.0

Service Manual

COMPACT SERIES

(The picture in this service manual is only for reference, and specific appearance and configuration are

subject to the real product)

Applicable Models

Model Code

UR-PC140-DQ

22033210000081

Prepared by

R&D:Tian Song

Reviewed by

QA:Ke Bingfei

SVC:Zhang Kun

Approved by

R&D: Zhang Huawei

SVC:Guang Taoshuai

Service Manual_2018-V1.0

WARNING

Important Safety Notice

There are special components used in this equipment which are important for safety. These parts are marked

by in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is

essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire

or other hazards. Do not modify the original design without permission of manufacturer.

WARNING

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

approval by the Overseas Sales Corporation of Midea Refrigerators.

Service Manual_2018-V1.0

Contents

1. SAFETY WARNING CODE................................................................................................................................... 5

1.1WARNING FOR OPERATION SAFETY ........................................................................................................................... 5

1.2 SAFETY INSTRUCTION FOR REFRIGERANT................................................................................................................. 7

2. DESCRIPTION FOR PRODUCT FEATURES..................................................................................................... 8

3. INSTALLATION AND COMMISSIONING............................................................................................................ 9

3.1 HANDLING................................................................................................................................................................... 9

3.2 DOOR DISASSEMBLY AND ASSEMBLY ........................................................................................................................ 9

3.3 INSTALLATION LOCATION ............................................................................................................................................ 9

3.4 LEVELING OF THE REFRIGERATOR............................................................................................................................. 9

3.5 DOOR REVERSAL...................................................................................................................................................... 10

3.6 INSTALLATION OF HANDLE ........................................................................................................................................ 12

3.7 INSTALLATION OF DOOR LOCK.................................................................................................................................. 12

3.8ADJUSTMENT TO LEVEL THE DOOR .......................................................................................................................... 13

3.9ADJUSTMENT TO SHELVES ....................................................................................................................................... 13

4. TERMS...................................................................................................................................................................14

4.1 DEFINITION OF MODEL (NONE)................................................................................................................................ 14

4.2 LOCATION OF NAMEPLATE (NONE).......................................................................................................................... 14

5. PRODUCT SPECIFICATION...............................................................................................................................15

5.1 TYPE SPECIFICATION(NONE)................................................................................................................................... 15

5.2 ELECTRICAL PARAMETERS....................................................................................................................................... 15

5.3 INSIDE TEMPERATURE.............................................................................................................................................. 16

5.4 DEFROSTING PARTS................................................................................................................................................. 16

5.5 CIRCUIT DIAGRAM .................................................................................................................................................... 17

6. INTERNAL VIEW AND DIMENSION ..................................................................................................................18

6.1 MAIN PARTS AND THEIR NAMES................................................................................................................................ 18

6.2 EXTERNAL DIMENSION ............................................................................................................................................. 19

7. REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR................................20

7.1 REFRIGERATING PIPING SYSTEM ............................................................................................................................. 20

7.2 CIRCULATING ROUTE OF COOLING AIR(NONE)........................................................................................................ 20

8. DISMANTLING OF PARTS..................................................................................................................................21

8.1 PARTS ON THE DOOR................................................................................................................................................ 21

8.2 PARTS INSIDE THE REFRIGERATOR .......................................................................................................................... 21

8.3 LIGHT SYSTEM.......................................................................................................................................................... 22

8.4AIR DUCT COMPONENTS REFRIGERATING CHAMBER............................................................................................... 22

8.5AIR DUCT COMPONENTS IN FREEZING CHAMBERAND FAN MOTOR.......................................................................... 22

8.6 EVAPORATOR AND TEMPERATURE SENSING SYSTEM .............................................................................................. 22

Service Manual_2018-V1.0

8.7 COMPRESSOR CASE ................................................................................................................................................ 24

8.8 DISPLAY CONTROL BOARD ....................................................................................................................................... 29

8.9 MAIN CONTROL BOARD ............................................................................................................................................ 29

8.10 BAR COUNTER........................................................................................................................................................ 29

8.11 WATER DISPENSER................................................................................................................................................. 29

8.12ICE MAKER .............................................................................................................................................................. 29

9. FUNCTION AND OPERATION............................................................................................................................30

9.1 OPERATION PANEL ................................................................................................................................................... 30

9.2 TEMPERATURE CONTROL......................................................................................................................................... 30

9.3 GIVE AN ALARM (NONE)........................................................................................................................................... 30

9.4 FAILURE CODE AND SOLUTIONS (NONE).................................................................................................................. 30

9.5 DEFROST FUNCTION................................................................................................................................................. 30

9.6 COMPRESSOR FAN CONTROL (NONE)..................................................................................................................... 30

10. CIRCUIT DESCRIPTION ...................................................................................................................................31

10.1 POWER SUPPLY(NONE)......................................................................................................................................... 31

10.2 TEST CIRCUIT FOR DOOR SWITCH(NONE)............................................................................................................. 31

10.3 TEMPERATURE TEST CIRCUIT(NONE).................................................................................................................... 31

10.4 FREEZER CHAMBER FAN MOTOR CIRCUIT (NONE)................................................................................................. 31

10.5 REFRIGERATING CHAMBER FAN MOTOR CIRCUIT (NONE)...................................................................................... 31

10.6 CONDENSATION FAN CIRCUIT (NONE)................................................................................................................... 31

10.7 FAN MOTOR CIRCUIT OF THE VENTILATION DOOR(NONE)...................................................................................... 31

10.8 RESISTANCE VALUE OF THE SENSOR (R/T) (NONE).............................................................................................. 31

11. TROUBLESHOOTING METHOD......................................................................................................................32

11.1 NOT COOLING......................................................................................................................................................... 32

11.2 NOT WORKING OF COMPRESSOR........................................................................................................................... 33

11.3 THERMOSTAT MALFUNCTION-UNDERCOOLING...................................................................................................... 33

11.4 LIGHT IS NOT ON..................................................................................................................................................... 34

11.5 NOISE ..................................................................................................................................................................... 34

12. FIGURES AND DETAILS OF REPAIR PARTS(DOCUMENTS ARE PROVIDED SEPARATELY) .............35

12.1 FIGURES................................................................................................................................................................. 35

12.2 LIST OF PARTS AND COMPONENTS......................................................................................................................... 35

13. APPENDIX...........................................................................................................................................................36

13.1 REFRIGERATOR MAINTENANCE TOOLINGAND EQUIPMENTAND MATERIAL............................................................ 36

Service Manual_2018-V1.0

1. Safety Warning Code

1.1 Warning for operation safety

Important Safety Instructions

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

This symbol indicates that dangerous voltage

constituting a risk of electric shock is present

within your freezer.

This symbol indicates that there are important

operating and maintenance instructions in the

literature accompanying your freezer.

WARNING

1) Read these instructions.

2) Keep these instructions.

3) Heed all warnings.

4) Follow all instructions.

5) Do not use this appliance near water.

6) Clean only with a damp cloth.

7) Do not block any ventilation openings.

8) Install in accordance with the manufacturer’s instructions.

9) Do not install near any heat sources, such as radiators, heat registers, stoves, or

other apparatus that produce heat.

10) Do not defeat the safety purpose of the polarized or grounding-type plug. A

polarized plug has two blades with one wider than the other. A grounding type plug has two

blades and a third grounding prong. The wide blade or the third prong are provided for your

safety. If the provided plug does not fit into your outlet, consult an electrician for replacement

of the obsolete outlet.

11) Protect the power cord from being walked on or pinched, particularly at plugs,

convenience receptacles, and the point where they exit from the appliance.

12) Do not attempt to modify or extend the power cord of this appliance.

13) Unplug this appliance during lightning storms or when it will not be used for long

periods of time.

14) Make sure that the availableAC power matches the voltage requirements of this

appliance.

Service Manual_2018-V1.0

CONNECTING ELECTRICITY

Electrical Shock Hazard.

Plug into a grounded 3-prong outlet.

Do not remove the ground prong.

Do not use an adapter.

Failure to follow these instructions can

result in death, fire, or electrical shock.

WARNING

Electric Shock Hazard

Failure to follow these instructions can result in electric shock, fire, or

death.

1) WARNING–Keep ventilation openings, in both the freezer and the built-in structure,

clear of obstruction.

2) WARNING–Do not touch the interior of the freezer with wet hands. This could result

in frost bite.

3) WARNING–Do not use mechanical devices or other means to accelerate the

defrosting process, other than those recommended by the manufacturer.

4) WARNING–Do not damage the refrigerant circuit.

5) WARNING–Do not damage the refrigerant tubing when handling, moving, or using

the freezer.

6) WARNING–DANGER–Never allow children to play with, operate, or crawl inside the

freezer. Risk of child entrapment. Before you throw away your old freezer:

6-1) Take off the doors

6-2) Leave the shelves in place so that children may not easily climb inside

7) Unplug the freezer before carrying out user maintenance on it.

8) This freezer can be used by children age eight years and older and persons with

reduced physical or mental capabilities or lack of experience and knowledge if they are

given supervision or instruction concerning the use of the freezer in a safe way and

understand the hazards involved. Children should not play with the freezer. Cleaning and

maintenance should not be performed by children without supervision.

9) If a component part is damaged, it must be replaced by the manufacturer, its service

agent, or similar qualified persons in order to avoid a hazard.

10) Please dispose of the freezer according to local regulations as the freezer contains

flammable gas and refrigerant.

11) Follow local regulations regarding disposal of the freezer due to flammable

refrigerant and gas. All refrigeration products contain refrigerants, which under the

guidelines of federal law must be removed before disposal. It is the consumer's

responsibility to comply with federal and local regulations when disposing of this product.

12) This freezer is intended to be used in household and similar environments.

Service Manual_2018-V1.0

13) Do not store or use gasoline or any flammable liquids inside or in the vicinity of this

freezer.

14) Do not use extension cords or ungrounded (two-prong) adapters with this freezer. If

the power cord is too short, have a qualified electrician install an outlet near the freezer. Use

of an extension cord can negatively affect the freezer’s performance.

Grounding requirement

This freezer must be grounded. This freezer is equipped with a cord having a grounding

wire with a grounding plug. The plug must be inserted into an outlet that is properly installed

and grounded.

Improper use of the grounding plug can result in a risk of electric shock. Consult a

qualified electrician or service person if the grounding instructions are not completely

understood, or if doubt exists as to whether the freezer is properly grounded.

1.2 Safety instruction for refrigerant

Explosion Hazard.

Keep flammable materials and vapors, such as gasoline, away from freezer. Failure to do so

can result in fire, explosion, or death.

Safety instruction for refrigerant

DANGER–Risk of Fire or Explosion. Flammable Refrigerant Used. To Be Repaired Only By

Trained Service Personnel. Do Not Use Mechanical Devices. Do Not Puncture Refrigerant

Tubing. CAUTION–Risk of Fire or Explosion. Flammable Refrigerant Used. Consult Repair

Manual/Owner’s Guide Before Attempting To Service This Product. All Safety Precautions

Must be Followed. CAUTION–Risk of Fire or Explosion. Dispose of Properly In Accordance

With Federal Or Local Regulations. Flammable Refrigerant Used. CAUTION–Risk of Fire or

Explosion Due To Puncture Of Refrigerant Tubing; Follow Handling Instructions Carefully.

Flammable Refrigerant Used.

Service Manual_2018-V1.0

2. Description for product features

This product is provided with following features:

1）Integrative refrigeration chamber

2）Mechanical control

3）Polisher black tower with stainless steel trim

4）Holds most 1/2 and 1/4 size kegs

Service Manual_2018-V1.0

3. Installation and commissioning

3.1 Handling

Handling

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, the

n 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

The refrigerator door needs to be dismantled if it cannot enter the room in the whole.

Disassembly of Freezer door

None

Disassembly of refrigerator door

None

3.3 Installation location

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

Leveling of the refrigerator

Service Manual_2018-V1.0

If the refrigerator cannot be placed steadily, adjust the

footing to level it.

3.5 Door reversal

Door reversal

1)Disassembly the top cover fix screw, remove the

seal plate of top cover.

1) 2)Disassembly the screw that is fix upper hinge

and top cover, remove the top cover.

3)Disassembly the right upper hinge, remove the

door, hinge fixed axis and axle sleeve.

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