LG GR-151SPF - User Manual

SAFETY PRECAUTIONS
Please read the followings before servicing your refrigerator.
1. Check if an electric leakage occurs in the set.
2. When servicing current applying parts, unplug prior to
servicing.
3. In case of testing with power injecting, wear rubber
gloves to prevent electric shock.
4. if you use any appliances, check regular current, voltage
and capacity.
6. Don't touch metal products in cold freezer room with wet
hand. It may cause frostbite.
6. Prevent water flowing to electric elements in mechanical
parts.
7. When sloping the set, remove any materials on the set,
especially thin plate type(ex,: glass plates or books.).
8. When servicing evaporator part, wear cotton gloves
without fail. It is to prevent wound by sharp fin of
evaporator.
9. Leave a breakage freezing cycle to a heavy service
center. The gas in cycle inside may soil ambient air.
SERVICING PRECAUTIONS
AIR RECHARGING IN COMPRESSOR
Test the refrigeration system by connecting it electrically
before refilling operation. This is necessary to ascertain the
function of the motor-compressor and identify the defects
immediately, if the defects have been found, empty the old
system of eventual R-t 2 residue by breaking off the end of
the extension piece at its narrow point. (Figure 1)
Replace the filter and any damaged component& Unsolder
and pull off the piece remaining inside the service tube and
then attach an extension completely with male Hansen and
last, solder it to the same tube again. (Figure 2)
It is necessary to execute the soldering operation with
valve open so that the fumes caused by oil residue can
come out freely without blowholes between two tubes
during heating the point to be soldered.
The extension fitted with the male Hansen is connected to
the female fitting of the vacuum pump tube. (Figure 3)
Air evacuating from the system begins as soon as the
pump starts. The refrigeration system must be kept under
vacuum until the reading on the low-pressure gauge
indicates vacuum (0 absolute, -1 atm., -760 mm hg) in any
case it is advisable to keep the pump running for about
30 minutes. (Figure 4)
POINT TO BED
BROKEN
SERVICE TUBED
EXTENSION
Figure 1
CHARGE TUBED FEMALE[
EXTENSION HANSEN
MALED
HANSEN
SOLDERINGD
POINT
Figure 2
GAUGE
Figure 3 Figure 4
-3-

Summary

SAFETY PRECAUTIONS

General Safety Guidelines

General guidelines for safe operation and servicing of the refrigerator.

SERVICING PRECAUTIONS

Air Recharging - Initial Steps

Procedure for initial testing and preparation for refrigerant recharging.

Vacuum Pump and Freon Addition (R12)

Steps for using the vacuum pump and adding R12 refrigerant.

Air Recharging - Initial Steps (R134 a)

Procedure for initial testing and preparation for R134a refrigerant recharging.

Vacuum Pump and Freon Addition (R134 a)

Steps for using the vacuum pump and adding R134a refrigerant.

SPECIFICATIONS

GR-151 Model Technical Specifications

Lists key technical specifications for the GR-151 refrigerator model.

PARTS IDENTIFICATION

Refrigerator Components Overview

Identifies and describes the main parts and their functions within the refrigerator.

DISASSEMBLY

Door Disassembly Procedure

Step-by-step instructions for removing the refrigerator door.

Thermostat Removal

Instructions for safely removing the thermostat component.

Compressor and PTC Removal

Procedure for disassembling and removing the compressor and PTC.

CIRCUIT DIAGRAM

Electrical Schematic Diagram

Shows the electrical connections and components of the refrigerator's system.

TROUBLESHOOTING

Common Defects, Causes, and Remedies

Lists common refrigerator problems, their likely causes, and recommended solutions.

NO COOLING DIAGNOSIS

Troubleshooting Flowchart for Cooling Issues

A flowchart to guide diagnosis of 'No Cooling' problems.

COMPRESSOR AND ELECTRIC COMPONENT TESTING

Testing Procedures for Compressor and PTC

Detailed steps for testing the compressor and other electrical components.

PTC COMPONENT TESTING

Procedure for Testing PTC Functionality

Specific instructions for testing the Positive Temperature Coefficient (PTC) component.

EXPLODED VIEWS

Main Unit Exploded View

An exploded diagram showing the assembly of the refrigerator's main body.

Internal Components Exploded View

An exploded diagram illustrating the arrangement of internal refrigerator components.

LG GR-151SPF Specifications

General

Brand	LG
Model	GR-151SPF
Category	Refrigerator
Language	English