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GR-P247C
LG GR-P247C User Manual
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46
Is the connection loose?
CON6
Reconnect
Yes
No
No
Is the output voltage betwee
n pin4 and pin5 of
CON6 like as below?
Receiver Voltages
Replace
Main PCB
No
Test Point
Pin4 To Pin5
Result
0 ~ 5 V
Pin5
Pin4
Pin5
Pin4
Is the output voltage
between Pin4 and pin5 of
CON6 like as below?
Explain to the customer!
Trans mi tt er Voltages
Replace
Main PCB
Yes
Test Point
Pin4 To Pin5
Result
0 ~ 5 V
No
45
47
Table of Contents
Default Chapter
2
Table of Contents
2
Chapter 1 Safety Warning and Cautions
3
Safety Warnings and Cautions
4
Chapter 2 Product Standards
8
Product Standards
9
Chapter 3 Circuit Diagram
10
Appearance Size of Refrigerator
11
Chapter 4 Appearance Size of Refrigerator and Name of Every Part
11
Major Name
12
Operating Panel
14
Display Second Function
14
Buzzer Sound Mute Mode
14
Chapter 5 Micom Function
14
Function Description
15
Funnction of Temperature Selection
15
Automatic Ice Maker
16
When Ice Maker Does Not Operate Smoothly
16
Ice Is Lumped Together
16
Express Freezing
16
Control of Variable Type of Freezing Room Fan
17
Control of M/C Room Fan Motor
17
Door Opening Alarm
17
Ringing of Button Selection Buzzer
17
Function of Trouble Diagnosis(88-LED)
18
Micom Failure Diagnosis Table
18
Test Function
19
Micom Function
19
Functions Performed When Ice Dispenser and Water Dispenser Are Mounted
20
Initial Control Function
21
Water Supply Control Function
21
Ice-Making Control Function
21
Chapter 6 Explanation of Micom Circuit
21
Chapter 7 Operation Principle and Repair Method of Ice Maker & Dispenser
21
Function of Ice Maker
21
Operation Principle
21
Operation Principle and Repair Method of Ice Maker & Dispenser
22
Ice Ejection Control Function
22
Function Following F-Room Door Open
23
Failure Diagnosis Method of Ice Maker
24
Chapter 9 Heavy Repair Method of Refrigerator Applying R600A Refrigerant
25
Heavy Repair SVC Method
25
Returnof Refrigerator Refrigerant
25
Chapter 8 Compressor
25
Returnof Remained Refrigerant
26
Welding Repair Step
26
Heavy Repair Method of Refrigerator by Application of Refrigerant
26
Charging Tube Connection Step
27
Vacuum Air Removal
27
Refrigerant Charging
28
Leak Inspection and Cycle Check
28
Failure Checking Procedures
29
Cautions in Heavy Repair Service
30
3-Way Valve Service
30
Troubleshooting with Error
31
Freezer Sensor Error
31
Refrigerator1 Sensor Error
32
Refrigerator2 Sensor Error
33
Ambient Sensor Error
34
Ice Maker Sensor Error
35
Freezer Defrost Sensor Error
36
Refrigerator Defrost Sensor Error
37
Freezer Defrost Heater Error
38
Refrigerator Defrost Heater Error
40
Freezer Fan Error
42
Refrigerator Fan Error
43
Condenser Fan Error
44
Communication Error
45
Water Tank Sensor Error
47
Ice Maker KIT Error
48
Crush Mode Does't Work
49
Water Mode Doesn't Work
54
COMP Operation Error
56
Resolution by Number of LED Blinks
57
How to Remove Terminal Position Assurance
58
How to Start Test Mode
58
Wire Color
58
Exploded View
59
Freezer Door Part
59
Dispenser Part
60
Refrigerator Door Part
61
Freezer Compartment
62
Refrigerator Compartment
63
Machine Compartment
64
4
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LG GR-P247C Specifications
General
Brand
LG
Model
GR-P247C
Category
Refrigerator
Language
English
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