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LG GR-151SPF Servicing Precautions
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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-

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Summary of Contents for LG GR-151SPF

  • Page 1 SAFETY PRECAUTIONS Please read the followings before servicing your refrigerator. 1. Check if an electric leakage occurs in the set. 6. Prevent water flowing to electric elements in mechanical parts. 2. When servicing current applying parts, unplug prior to servicing. 7.
  • Page 2 In case that a considerable leakage occurs and to stop the Before performing this operation (if the vacuum pump and vacuum pump will be necessary and add a small quantity refilling cylinder are connected), make sure that the valve of Freon to the system, if vacuum should not be obtained placed between the vacuum pump and refilling tube are (pressure gauge can't fall to 1 atmosphere.), start the...
  • Page 3 AIR RECHARGING IN COMPRESSOR Test the refrigeration system by connecting it electrically It is necessary to execute the soldering operation with before refilling operation. This is necessary to ascertain the valve open so that the fumes caused by oil residue can function of the motor-compressor and identify the defects come out freely without blowholes between two tubes...
  • Page 4 In case that a considerable leakage occurs and to stop the Before performing this operation (if the vacuum pump and vacuum pump will be necessary and add a small quantity refilling cylinder are connected), make sure that the valve of Freon to the system, if vacuum should not be obtained placed between the vacuum pump and refilling tube are (pressure gauge can't fall to 1 atmosphere.), start the...
  • Page 5: Specifications

    1. SPECIFICATIONS 1-1 GR-151 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS EVAPORATOR ROLL BOND TYPE DOOR TYPE 1DOOR NET CAPACITY 124 l DIMENSION 484(W)X850(H)X549(D)mm NET WEIGHT CONDENSER TYPE WALL CONDENSER 30 Kg REFRIGERANT (FLUSH BACK) R_12 (80g) LUBRICANT DEFROSTING SYSTEM MANUAL R-12(80g) R-134a(95g) LUBRICANT VS Series TEMPERATURE...
  • Page 6 3. DISASSEMBLY A. DOOR C. COMPRESSOR AND PTC 1. Loosen 3 screws holding an upper hinge to separate the 1. Remove Protector Cover, Power Cord and Lead Wire door body. (Figure 7) first. (Figure 11) 2. Separate OLR 3. Separate PTC. 4.
  • Page 7: Circuit Diagram

    2000.03.13 100/70 CIRCUIT DIAGRAM THERMOSTAT YL :YELLOW BK:BLACK Y" BL:BLUE _, i GN(GI_.) GN:GREEN PK:PINK 4N-I BL_ _ __C_IOMPRESSOR P.T.C STARTER THE PLUG TYPE ON CIRCUIT DIAGRAM IS SUBJECT TO CHANGE IN DIFFRENT LOCALTIES. 3854,JD1009E...
  • Page 8: Troubleshooting

    TROUBLESHOOTING DEFECT CAUSE REMEDY EFFECT GROUP PARTIALLY Evaporatordose not frost even An empty refrigerantsystem Leakagemust be eliminatedby OR COMPLETELY though motor-compressorruns indicates a leakage of R_2. T his loss resolderingthe defective point or OUT OF continually. is generallyto be lookedfor at the substitutingthe damaged REFRIGERANT soldering pointsconnectingthe...
  • Page 9 NO COOLING Replace the doesn't run. flows at the contacting Poor contacting point Thermostat. The Compressor point of the Thermostat. Check if the current Replace the device. tcheck flowing of starting the currentI___,t Shorted Broken system. Replace the "_) flows at the main coil of Coil shorted Compressor.
  • Page 10 COMPRESSOR AND ANOTHER ELECTRIC COMPONENTS Separate the PTC-STARTER from voltage. (Rating the Compressor and measure the voltage _+10%) voltage between M and C of the Power Source qual to the applied Compressor. The applied voltage is not in the to use in the fixed range of Rating Voltage _+10%.
  • Page 11 First, separate the PTC from the Compressor and check the Poor starting or no voltage between NO 5 and 6 operating of the in the PTC with a multitester Compressor. or Wheatstone Bridge. Check another electric range of 15-28 for Normal The value is in the components.
  • Page 12 5. EXPLODED VIEW -14-...