LG LRDC22731ST Manuals

Manuals and User Guides for LG LRDC22731ST. We have 3 LG LRDC22731ST manuals available for free PDF download: Service Manual, User Manual

LG LRDC22731ST Service Manual (68 pages)

Brand: LG | Category: Refrigerator | Size: 24 MB

Contents
2
Safety Precautions
2
Specifications
3
Parts Identification
4
Disassembly
5
Door Switch
5
Refrigerator Door
5
Freezer Door
5
Fan and Fan Motor
6
Defrost Control Assembly
6
Lamp
6
Control Box-Refrigerator
6
Adjustment
7
Compressor
7
PTC-Starter
7
PTC-Applied Circuit Diagram
7
Olp
8
To Remove the Cover PTC
8
Role of the OLP
8
Circuit Diagram
9
Troubleshooting
10
Compressor and Electric Components
10
PTC and OLP
11
Other Electrical Components
12
Not Cooling at All
12
Poor Cooling Performance
12
Service Diagnosis Chart
13
Refrigeration Cycle
14
Troubleshooting Chart
14
Leakage Detection
14
General Control of Refrigerating Cycle
15
Operation Principle
16
Control Method According to Functions
17
Start Position
17
Ice Making Mode
17
Harvest Mode
17
Fill / Park Position
18
Water Supply Amount TABLE
18
Function Test
19
Defect Diagnosis Function
19
Error Codes
19
Water Filter
20
Water Filter Cartridge Replacement
20
How to Change the Old Cartridge
20
Water Dispenser
21
Description of Function & Circuit of Micom
22
How to Change the Temperature Mode to F/C
22
Dispenser Lock
22
Control of Freezer Fan Motor
23
Express Freezing
23
Refrigerator Lamp Auto off
23
Alarm for Open Door
23
Buzzer Sound
24
Defrosting
24
Filter Replacement Indication
24
Power Failure Compensation Function
24
Detect Diagnosis Function
25
TEST Mode
26
LED Check Mode
26
Freezer Fan RPM Variable Check
26
Demonstration Mode
26
PCB Function
27
Power Circuit
27
Oscillation Circuit
28
Reset Circuit
28
Load Drive Condition Check
29
Fan Motor Driving Circuit
29
Buzzer Drive Condition Check
30
Open Door Detection Circuit Check
30
Temperature Sensor Circuit
31
Refrigeration Compartment Stepping Motor Damper Circuit
32
Dispenser Input/Led Output Circuit
32
Refrigerator Temperature Compensation
33
Key Button Input & Display Light-On Circuit
34
Resistance Specification of Sensor
35
Main PWB Assembly
38
Replacement Parts List
39
PWB Assembly, Display and Parts List
40
PWB Diagram
41
PWB Main Assembly
41
Exploded View
43
Case Parts
43
Freezer Parts
44
Refrigerator Parts
45
Door Parts
48
Ice Maker Parts
50
Ice & Water Parts
51

LG LRDC22731ST Service Manual (63 pages)

Brand: LG | Category: Refrigerator | Size: 3 MB

Safety Precautions

2
- Table of Contents
  2
Specifications

3
Parts Identification

4
Disassembly

5
- Door
  5
- Door Switch
  5
- Fan and Fan Motor
  6
- Defrost Control Assembly
  6
- Lamp
  6
- Control Box-Refrigerator
  6
- Multi Duct
  6
Adjustment

7
- Compressor
  7
- Ptc-Starter
  7
- Olp (Overload Protector)
  8
- To Remove the Cover Ptc
  8
Circuit Diagram

9
Troubleshooting

10
- Compressor and Electric Components
  10
- Ptc and Olp
  11
- Other Electrical Components
  12
- Service Diagnosis Chart
  13
- Refrigeration Cycle
  14
Operation Principle & Repair Method of Icemaker

16
Description of Function & Circuit of Micom

20
Exploded View & Replacement Parts List

41

LG LRDC22731ST User Manual (38 pages)

BOTTOM FREEZER REFRIGERATOR

Brand: LG | Category: Refrigerator | Size: 10 MB

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More LG Manuals

LG LRDC22731ST Manuals

LG LRDC22731ST Service Manual (68 pages)

Table of Contents

LG LRDC22731ST Service Manual (63 pages)

Table of Contents

Safety Precautions

Specifications

Parts Identification

Disassembly

Adjustment

Circuit Diagram

Troubleshooting

Operation Principle & Repair Method of Icemaker

Description of Function & Circuit of Micom

Exploded View & Replacement Parts List

LG LRDC22731ST User Manual (38 pages)

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