LG LWG0760AHG_AHN_AHE Service Manual ▷ View online
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2.3 ELECTRICAL PARTS
2.3.1 OVERLOAD PROTECTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the nut which fastens the terminal cover.
3. Remove the terminal cover. (See Figure 7)
4. Remove all the leads from the overload protector.
5. Remove the overload protector.
6. Re-install the component by referring to the
removal procedure, above.
2.3.2 COMPRESSOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Discharge the refrigerant system using a Freon
TM
Recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the Freon
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the Freon
TM
. Leave the valve in place after
servicing the system.
3. Remove the overload protector. (Refer to section
2.3.1)
4. After purging the unit completely, unbraze the
suction and discharge tubes at the compressor
connections.
connections.
5. Remove the 3 nuts and the 3 washers which
fasten the compressor.
6. Remove the compressor. (See Figure 8)
7. Re-install the components by referring to the
removal procedure, above.
Figure 7
Figure 8
Figure 9
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2.3.3 CAPACITOR
1. Remove the control box. (Refer to section 2.1.3)
2. Remove the knobs and the screw which fasten
2. Remove the knobs and the screw which fasten
control panel from control box.
3. Remove the screw which located in the front.
4. Open the bottom side of control box.
5. Remove the screw and the clamp which fastens the
4. Open the bottom side of control box.
5. Remove the screw and the clamp which fastens the
capacitor.
6. Disconnect all the leads of capacitor terminals.
7. Re-install the components by referring to the
7. Re-install the components by referring to the
removal procedure, above. (See Figure 9)
2.3.4 POWER CORD
1. Remove the control box. (Refer to section 2.1.3)
2. Open the control box. (Refer to section 2.3.3)
3. Disconnect the grounding screw from the control
2. Open the control box. (Refer to section 2.3.3)
3. Disconnect the grounding screw from the control
box.
4. Disconnect the 2 receptacles.
5. Remove a screw which fastens the clip cord.
5. Remove a screw which fastens the clip cord.
(See Figure 10)
6. Remove the power cord.
7. Re-install the component by referring to the above
7. Re-install the component by referring to the above
removal procedure, above.
(Use only one ground-marked hole for ground
connection.)
(Use only one ground-marked hole for ground
connection.)
8. If the supply cord of this appliance is damaged, it
must be replaced by the special cord. (The
special cord means the cord which has the same
specification marked on the supply cord attached at
the unit.)
special cord means the cord which has the same
specification marked on the supply cord attached at
the unit.)
2.3.5 THERMOSTAT
1. Remove the control box. (Refer to section 2.1.3)
2. Open the control box. (Refer to section 2.3.3)
3. Remove the 2 screws which fasten the thermostat.
4. Disconnect 2 leads of thermostat terminals.
5. Remove the thermostat.
6. Re-install the components by refereing to the above
2. Open the control box. (Refer to section 2.3.3)
3. Remove the 2 screws which fasten the thermostat.
4. Disconnect 2 leads of thermostat terminals.
5. Remove the thermostat.
6. Re-install the components by refereing to the above
removal procedure. (See Figure 11)
2.3.6 ROTARY SWITCH
1. Remove the control box. (Refer to section 2.1.3)
2. Open the control box. (Refer to section 2.3.3)
3. Remove the 2 screws which fasten the rotary switch.
4. Disconnect all the leads of the rotary switch terminals.
5. Remove the rotary switch.
6. Re-install the components by referring to the above
2. Open the control box. (Refer to section 2.3.3)
3. Remove the 2 screws which fasten the rotary switch.
4. Disconnect all the leads of the rotary switch terminals.
5. Remove the rotary switch.
6. Re-install the components by referring to the above
removal procedure. (See Figure 12)
Figure 11
Figure 10
Figure 9
Figure 12
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2.3.7 MOTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the evaporator. (Refer to section 2.2.1)
3. Remove the orifice. (Refer to section 2.2.1)
4. Remove the blower. (Refer to section 2.2.1)
5. Remove the fan. (Refer to section 2.2.2)
6. Remove the control box cover and disconnect 5
2. Remove the evaporator. (Refer to section 2.2.1)
3. Remove the orifice. (Refer to section 2.2.1)
4. Remove the blower. (Refer to section 2.2.1)
5. Remove the fan. (Refer to section 2.2.2)
6. Remove the control box cover and disconnect 5
wires of motor housing. (Refer to section 2.1.3)
7. Remove the 4 screws which fasten the motor form
the mount motor. (See Figure 13)
8. Remove the motor.
9. Re-install the components by referring to the
9. Re-install the components by referring to the
removal procedure, above. (See Figure 13)
2.3.8 REVERSING VALVE ASS'Y
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the reversing coil from the reversing valve
2. Remove the reversing coil from the reversing valve
assembly by loosening the screw.
3. Discharge the refrigerant system using a Freon
TM
recovery system.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the Freon
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the Freon
TM
.
Leave the valve in place after servicing.
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the reversing
vlave assembly connections.
vlave assembly connections.
5. Re-install the components by referring to the
removal procedure, above.
Notes:
When connect the reversing valve assembly,
braze the reversing valve and inter-connecting
tube immersing in water not to make the tempera-
ture of surface exceed more than 120°C(248°F)
braze the reversing valve and inter-connecting
tube immersing in water not to make the tempera-
ture of surface exceed more than 120°C(248°F)
Reversing valve
Reversing coil
Figure 13
Figure 14
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2.4 REFRIGERATING CYCLE
2.4.1 CONDENSER
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 3 screws which fasten the
2. Remove the 3 screws which fasten the
brace.(Refer to section 2.2.1)
3. Remove the 3 screws which fasten the condenser
and shroud.
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the condenser
connections.
connections.
5. Remove the condenser carefully.
6. Re-install the component by referring to notes.
6. Re-install the component by referring to notes.
(See Figure 15)
2.4.2 EVAPORATOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 2 screws which fasten the evaporator.
3. Move the evaporator sideways carefully.
2. Remove the 2 screws which fasten the evaporator.
3. Move the evaporator sideways carefully.
(Refer to section 2.2.1)
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.
connections.
5. Remove the evaporator carefully.
6. Re-install the component by referring to notes.
6. Re-install the component by referring to notes.
(See Figure 16)
2.4.3 CAPILLARY TUBE
1. Remove the cabinet. (Refer to section 2.1.2)
2. After discharging the refrigerant completely,
2. After discharging the refrigerant completely,
unbraze the interconnecting tube at the capillary
tube.(See caution above)
tube.(See caution above)
3. Remove the capillary tube.
4. Re-install the component by referring to notes.
4. Re-install the component by referring to notes.
Figure 15
Figure 16
Discharge the refrigerant system using a
Freon
Freon
TM
Recovery System.
If there is no valve to attach the recovery
system, install one (such as a WATCO A-1)
before venting the Freon
system, install one (such as a WATCO A-1)
before venting the Freon
TM
. Leave the valve in
place after servicing the system.
CAUTION
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