LG GR-L258 User manual

CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
REFRIGERATOR
SERVICE MANUAL
COLOR: TITANIUM
WESTERN BLACK
SUPER WHITE
STAINLESS
MODEL: GR-L258
GR-L218

SAFETY PRECAUTIONS ....................................................................................................................................................... 2
1. SPECIFICATIONS............................................................................................................................................................... 3
2. PARTS IDENTIFICATION ................................................................................................................................................... 4
3. DISASSEMBLY.............................................................................................................................................................. 5-13
REMOVING AND REPLACING REFRIGERATOR DOORS ...............................................................................................5
DOOR .............................................................................................................................................................................. 6-7
TO REMOVE THE DISPENSER .........................................................................................................................................7
DOOR ALIGNMENT ............................................................................................................................................................7
FAN AND FAN MOTOR(Evaporator) .................................................................................................................................. 7
ICE FAN SCROLL ASSEMBLY REPLACEMENT ..............................................................................................................8
DEFROST CONTROL ASSEMBLY .................................................................................................................................... 8
LAMP .................................................................................................................................................................................. 8
CONTROL BOX-REFRIGERATOR .................................................................................................................................... 8
MULTI DUCT ...................................................................................................................................................................... 9
MAIN PWB, DISPLAY PWB REPLACEMENT, FUNNEL REPLACEMENT........................................................................9
SUB PWB FOR DISPENSER, DUCT DOOR REPLACEMENT, ICE CORNER DOOR
REPLACEMENT, ICE MAKER ASSEMBLY ......................................................................................................................10
AUGER MOTOR COVER, AUGER MOTOR REPLACEMENT .........................................................................................11
DOOR ICE BIN ..................................................................................................................................................................12
HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER...............................................................................13-14
4. ADJUSTMENT............................................................................................................................................................. 15-17
COMPRESSOR ................................................................................................................................................................ 15
PTC-STARTER ................................................................................................................................................................. 15
WATER VALVE DISASSEMBLY METHOD........................................................................................................................16
FAN AND FAN MOTOR DISASSEMBLY METHOD .........................................................................................................16
OLP(OVERLOAD PROTECTOR)......................................................................................................................................17
TO REMOVE THE COVER PTC .......................................................................................................................................17
5. CIRCUIT DIAGRAM.......................................................................................................................................................... 18
6. TROUBLESHOOTING................................................................................................................................................. 19-23
COMPRESSOR AND ELECTRIC COMPONENTS.......................................................................................................... 19
OTHER ELECTRICAL COMPONENTS ........................................................................................................................... 20
SERVICE DIAGNOSIS CHART........................................................................................................................................ 21
REFRIGERATION CYCLE .......................................................................................................................................... 22-23
7. OPERATION PRINCIPLE & REPAIR METHOD OF ICEMAKER .............................................................................. 24-26
8. DESCRIPTION OF FUNCTION, CIRCUITS & ERROR CODES..................................................................................27-41
9. EXPLODED VIEW & REPLACEMENT PARTS LIST ..................................................................................................... 42-
CONTENTS
- 2 -
Please read the following instructions before servicing your
refrigerator.
1. Unplug the power before handling any elctrical
componets.
2. Check the rated current, voltage, and capacity.
3. Take caution not to get water near any electrical
components.
4. Use exact replacement parts.
5. Remove any objects from the top prior to tilting the
product.
SAFETY PRECAUTIONS

21 cu. ft. / 25 cu. ft.
1. SPECIFICATIONS
- 3 -
ITEMS SPECIFICATIONS
DOOR DESIGN Side Rounded
DIMENSIONS (inches)
35 3/4X 30 X 69 3/4(WXDXH) 21cu.ft
35 3/4X 34 1/4X 69 3/4(WXDXH) 25cu.ft
NET WEIGHT (pounds)
302.58 (
21cu.ft)
324.18 ( 25cu.ft)
COOLING SYSTEM Fan Cooling
TEMPERATURE CONTROL Micom Control
Full Automatic
DEFROSTING SYSTEM
Heater Defrost
DOOR FINISH Embossed Metal, VCM, Stainless
HANDLE TYPE Bar
INNER CASE ABS Resin
INSULATION Polyurethane Foam
ITEMS SPECIFICATIONS
VEGETABLE TRAY Opaque Drawer Type
COMPRESSOR Recipro
EVAPORATOR Fin Tube Type
CONDENSER Wire Condenser
REFRIGERANT R-134a (125 g)
LUBRICATING OIL ISO10 (280 ml)
DEFROSTING DEVICE SHEATH HEATER
LAMP
REFRIGERATOR 60 W (2EA)
FREEZER 60 W (1EA)
Description GR-L218 GR-L258
Depth w/ Handles A 30 in. 34 1/4 in.
Depth w/o Handles B 27 1/2 in. 31 3/4 in.
Depth w/o Door C 23 5/8 in. 27 7/8 in.
Depth (Total with Door Open) D 42 1/4 in. 46 1 /2 in.
Height to Top of Case E 68 3/8 in. 68 3/8 in.
Height to Top of Door Hinge F 69 3/4 in. 69 3/4 in.
Width G 35 3/4 in. 35 3/4 in.
Width (door open 90 deg. w/o handle) H 39 1/4 in. 39/1/4 in.
Width (door open 90 deg. w/ handle) I 44 1/4 in. 44 1/4 in.
DIMENSIONS

2. PARTS IDENTIFICATION
- 4 -
A
B
F
N
M
E
L
H
G
C
P
C
Q
O
D
I
K
J
Refrigerator Light
Filter (Inside)
Modular Door Bins
Refrigerator Shelves
Supra Fresh Crisper with
Tilt-Out Compartment
Ice Room
(Ice Maker and Ice Bank)
Pull out Drawer
Turbo Motor
Tilt-Out Door Basket
Durabase
Divider
Ice Bin
Water Tank Cover
Snack Pan
Egg Box
Dairy Bin
Bottle Holder
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
Ice Bank
Ice Door

3-1 REMOVING AND REPLACING REFRIGERATOR DOORS
● Removing Refrigerator Door
wwCAUTION: Before you begin, unplug the refrigerator. Remove food and bins from doors.
uuLeft Door -FIG. 2
1. Disconnect water supply tube by pushing back on the disconnect ring (4).-FIG. 1
2. Open door. Loosen top hinge cover screw (1).
Use flat tip screwdriver to pry back hooks on front underside of cover (3). Lift up cover.
3. Disconnect door switch wire harness (2). Remove cover.
4. Pull out the tube.
5. Disconnect the three wire harnesses (5). Remove the grounding screw (6).
6. Rotate hinge lever (7) counterclockwise and remove. Lift top hinge (8) free of hinge lever latch (9).
wwCAUTION: When lifting hinge free of latch, be careful that door does not fall forward.
7. Lift door up from middle hinge pin and remove door.
8. Place door, inside facing up, down onto a non-scratching surface.
uuRight Door -FIG. 3
1. Open door. Loosen top hinge cover screw (1). Lift up cover (3).
2. Disconnect door switch wire harness (2). Remove cover.
3. Disconnect wire harness (5). Remove the grounding screw (6).
4. Rotate hinge lever (7) clockwise and remove. Lift top hinge (8) free of hinge lever latch (9).
wwCAUTION: When lifting hinge free of latch, be careful that door does not fall forward.
5. Lift door up from middle hinge pin (10) and remove door.
6. Place door, inside facing up, down onto a non-scratching surface.
3. DISASSEMBLY
- 5 -
31
4
6
2
7
8
9
5
1
78
3
2
6
5
9
4
Figure 2 Figure 3
Figure 1

- 6 -
3-2 DOOR
● Door Gasket Removal
1. Remove door frame cover
Starting at top of cover and working down, snap cover
out and away from door.
2. Remove gasket bracket clips
There are two clips on each door. Start bracket removal
near one of the middle clips.
1) Pull gasket back to expose gasket bracket clip and
door frame.
2) Insert a flat tip screwdriver into seam between gasket
bracket and door frame and pry back until clips snap
out.
3) Continue prying back along seam until all clips snap
out.
3. Remove gasket
Pull gasket free from gasket channel on the three
remaining sides of door.
● Door Gasket Replacement
1. Insert gasket bracket clips
1) Insert gasket bracket edge beneath door frame edge.
2) Turn upper gasket bracket spring so that the spring
ends are in the door channel.
3) Push in clip until you hear it snap securely into place.
4) Push in remaining clip until you hear it snap securely
into place.
Note: Make sure that no part of gasket bracket edge
protrudes from beneath door frame edge.
2. Insert gasket into channel
1) Snap gasket assembly into the door bracket.
<Inserting the Gasket Assembly into the Bracket Door>
Frame Cover
Handle
Door
Frame
Gasket
Bracket Clip
Flat Tip
Screwdriver
Gasket
Bracket
Figure 1
Figure 2
Figure 3
Door
Frame
Gasket
Bracket Clip
Spring
IncorrectCorrect
Incorrect
Correct
Figure 4
Figure 5

- 7 -
2) Press gasket into channels on the three remaining
sides of door.
3. Replace door frame cover
Starting at top of cover and working down, snap cover
back into door.
3-3 TO REMOVE THE DISPENSER
1) Use a flat tip screwdriver to pry back the hooks on
underside of the dispenser cover.
2) Pry off the dispenser cover, as shown in the picture.
wwCAUTION: When replacing the dispenser cover in the
reverse order of removal, be careful that the lead wire
does not come out and the water tube is not pinched by
the dispenser cover, as shown in the picture below.
3-4 DOOR ALIGNMENT
If the space between your doors is uneven, follow the
instructions below to align the doors:
1. With one hand, lift up the door you want to raise at
middle hinge.
2. With other hand, use pliers to insert snap ring as shown.
3. Insert additional snap rings until the doors are aligned.
(Three snap rings are provided with unit.)
3-5 FAN AND FAN MOTOR(EVAPORATOR)
1. Remove the freezer shelf. (If your refrigerator has an
icemaker, remove the icemaker first)
2. Remove the plastic guide for slides on left side by
unscrewing phillips head screws.
3. Remove the grille by removing one screw and pulling the
grille forward.
4. Remove the Fan Motor assembly by loosening 2 screws
and disassembling the shroud.
5. Pull out the fan and separate the Fan Motor and Bracket.
Figure 6
Figure 10
Figure 7
GRILLE
FAN MOTOR
FAN
BRACKET
MOTOR
Figure 11

* Ice Fan Scroll Assembly Replacement
1) Remove the plastic guide for slides on left side by
unscrewing phillips head screws.
2) Pull the grille forward as shown in the second picture.
3) Disconnect wire harness of the grille
4) Remove the scroll assembly by loosening 2 screws
3-6 DEFROST CONTROL ASSEMBLY
Defrost Control assembly consists of Defrost Sensor and
FUSE–M.
The Defrost Sensor works to defrost automatically. It is
attached to the metal side of the Evaporator and senses its
temperature. At 72°C, it turns the Defrost Heater off.
Fuse-M is a safety device for preventing over-heating of
the Heater when defrosting.
1. Pull out the grille assembly. (Figure 12)
2. Separate the connector with the Defrost Control
assembly and replace the Defrost Control assembly
after cutting the Tie Wrap. (Figure 13)
3-7 LAMP
3-7-1 Refrigerator Compartment Lamp
1. Unplug Refrigerator, or disconnect power at the circuit
breaker.
2. If necessary, remove top shelf or shelves.
3. Using a flat instrument, gently pry the cover loose in the
front as shown. Rotate downward to remove rear tabs.4.
Make sure the bulbs are cool to the touch.
Turn bulbs counterclockwise to remove.
5. Assemble in reverse order by snapping the Lamp Cover
in, engaging the rear tabs followed by the front tabs.
(Max. 60 W-2EA)
3-7-2 Freezer Compartment Lamp
1. Unplug refrigerator power cord form outlet.
2. Using a flat instrument, gently pry the lamp cover
loose in the front as shown. Rotate downward to
remove the rear tabs.
3. Make sure the bulb is cool to the touch. Turn the
bulb counterclockwise to remove.
4. Replace with a new 60-watt appliance bulb.
5. Insert tabs on back of cover into slots in freezer
ceiling. Push cover up to snap front into place.
3-8 CONTROL BOX-REFRIGERATOR
1. First, remove all shelves in the refrigerator, than remove
the Refrigerator control Box by loosening 2 screws.
2. Remove the Refrigerator Control Box by pulling it
downward.
3. Disconnect the lead wire on the right position and
separate the lamp sockets.
- 8 -
GRILLE ASSEMBLY
Figure 12
DEFROST-CONTROL
ASSEMBLY
Figure 13
Figure 14
Figure 15
CONTROL BOX
COVER LAMP
Figure 16
(1) (2)
(3) (4)

- 9 -
3-9 MULTI DUCT
1. Remove the upper and
lower Caps by using a flat
screwdriver, and remove
2 screws. (Figure 17)
2. Disconnect the lead wire
on the bottom position.
3-10 MAIN PWB
1) Loosen the 3 screws on the PWB cover.
2) Remove the PWB cover
3) Disconnect wire harness and replace the main PWB in
the reverse order of removal.
3-11 DISPENSER
1) Disconnect funnel and
button assembly by
pulling down and
forward.
2) Remove display frame
assembly by making a gap
between a display frame
assembly and door with a
flat blade screwdriver and
pulling it forward. The cover
dispenser is attached with a
hook.
3-12 DISPLAY PWB REPLACEMENT
1) Pull up and out on the dispenser cover to remove.
2) Follow the steps in the pictures
3-13 FUNNEL REPLACEMENT
1) Pull up and out on the dispenser cover to remove.
2) Disconnect the wire harness.
3) Replace in reverse order.
Figure 17

3-14 SUB PWB FOR WORKING DISPENSER
1) Loosen the screw on the sub PWB.
2) Pull the sub PWB down.
3) Disconnect the wire harness and replace the sub PWB
in the reverse order of removal.
3-15 DUCT DOOR REPLACEMENT
1) Pull up and out on the dispenser cover to remove.
2) Disconnect the wire harness.
3) Remove the funnel
4) Replace in reverse order.
3-16 ICE CORNER DOOR REPLACEMENT
1) Loosen the front screw as shown in the picture.
2) Lift up the hinge with one hand.
3) Pull out the Ice Corner Door with the other hand.
3-17 ICEMAKER ASSEMBLY
1) Loosen two screws as shown in the first picture.
2) Disconnect the wire harness & ground screw replace
theIcemaker assembly in the reverse order of removal.
3) It separates a ground connection screw.
hinge
- 10 -

3-18 AUGER MOTOR COVER
1) After removing the icemaker remove the (6) white
screws holding the auger motor cover, shown in the
picutres below.
2) Grip the bottom of motor cover assembly and pull out it.
3) Disconnect wire harness of motor cover assembly.
There is a auger motor on the back, as shown in the
picture.
3-19 AUGER MOTOR REPLACEMENT
1) Remove the Ice Bin.
2) Remove the (2) screws on the front cover & the auger
drive coupler.
3) Follow the steps in the pictures.
- 11 -
Geared Motor

3-20 HOW TO REMOVE A DOOR ICE BIN
1) Grip the handles, as shown in the picture.
2) Lift the lower part slightly.
3) Take the Ice Bin out slowly.
3-21 HOW TO INSERT A DOOR ICE BIN
1) Insert the Ice Bin, slightly tilting it to avoid touching the
Icemaker. (especially, ice maker lever)
Insert the ice bucket carefully avoid contacing the
automatic shut off arm.
- 12 -
1
2

3-22 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER
3-22-1 Follow Steps to Remove
Step 1) Open the freezer door.
Step 3) Remove the two screws from the guide rails (one
from each side).
Step 2) Remove the lower basket.
Step 4) Lift the freezer door up to unhook it from the rail
support and remove.
Pull both rails to full extension.
Step 5) First: Remove the gear from the left side first by releasing the tab behind the gear, place a screwdriver between the
gear and the tab and pull up on the gear.
Second: Remove the center rail.
Third: Remove the gear from the right side by following the same steps for the left side.
NOTE: THIS TAB MUST BE PUSHED IN TO RELEASE THE GEAR.
- 13 -

3-22-2 Follow Steps to Reinstall
Step 1) Reinstall the right side gear into the clip.
Step 2) Insert the rail into the right side gear. Gears do not
need to be perpendicular to each other.
Step 4) The rail system will align itself by pushing the rails
all the way into the freezer section.
Pull the rails back out to full extension.
Step 6) Reinstall the two screws into the guide rails
(one from each side).
Step 3) Insert the rail into the left side gear, and insert the
gear into the clip.
Step 5) Reinstall the freezer door by inserting the rail tabs
into the guide rail.
Step 7) Reinstall the lower basket, and close the freezer
door.
- 14 -

- 15 -
4-1 COMPRESSOR
4-1-1 Role
The compressor intakes low temperature and low pressure
gas from the evaporator of the refrigerator and compresses
this gas to high-temperature and high-pressure gas. It then
delivers the gas to the condenser.
4-1-2 Composition
The compressor includes overload protection. The PTC
starter and OLP (overload protector) are attached to the
outside of the compressor. Since the compressor is
manufactured to tolerances of 1 micron and is hermetically
sealed in a dust and moisture-free environment, use
extreme caution when performing repairs.
4-1-3 Note for Usage
(1) Be careful not to allow over-voltage and over-current.
(2) If compressor is dropped or handled carelessly, poor
operation and noise may result.
(3) Use proper electric components appropriate to the
Particular Compressor in your product.
(4) Keep Compressor dry.
If the Compressor gets wet (in the rain or a damp
environment) and rust forms in the pin of the Hermetic
Terminal, poor operation and contact may result.
(5) When replacing the Compressor, be careful that dust,
humidity, and soldering flux don’t contaminate the inside
of the compressor. Dust, humidity, and solder flux
contaminate the cylinder and may cause noise,
improper operation or even cause it to lock up.
4-2 PTC-STARTER
4-2-1 Composition of PTC-Starter
(1) PTC (Positive Temperature Coefficient) is a no-contact
semiconductor starting device which uses ceramic
material consisting of BaTiO3.
(2) The higher the temperature is, the higher the resistance
value. These features are used as a starting device for
the Motor.
4-2-2 Role of PTC-Starter
(1) The PTC is attached to the Sealed Compressor and is
used for starting the Compressor Motor.
(2) The compressor is a single-phase induction motor.
The starting operation, the PTC allows current flow to
both the start winding and main winding.
4-2-3 PTC-Applied Circuit Diagram
● Starting Method for the Motor
4-2-4 Motor Restarting and PTC Cooling
(1) It requires approximately 5 minutes for the pressure to
equalize before the compressor can restart.
(2) The PTC device generates heat during operation.
Therefore, it must be allowed to cool before the
compressor can restart.
4-2-5 Relation of PTC-Starter and OLP
(1) If the compressor attempts to restart before the PTC
device is cooled, the PTC device will allow current to
flow only to the main winding.
(2) The OLP will open because of the over current
condition. This same process will continue (3 to 5
times) when the compressor attempts to restart until
the PTC device has cooled. The correct OLP must be
properly attached to prevent damage to the
compressor.
Parts may appear physically identical but could have
different electrical ratings. Replace parts by part
number and model number. Use only approved
substitute parts.
4-2-6 Note for Using the PTC-Starter
(1) Be careful not to allow over-voltage and over-current.
(2) Do not drop or handle carelessly.
(3) Keep away from any liquid.
If liquid such as oil or water enters the PTC,
PTC materials may fail due to breakdown of their
insulating capabilities.
(4) If the exterior of the PTC is damaged, the resistance
value may be altered. This can cause damage to the
compressor and result in a no-start or hard-to-start
condition.
(5) Always use the PTC designed for the compressor and
make sure it is properly attached to the compressor.
Parts may appear physically identical but could have
different electrical ratings. Replace parts by part
number and model number. Use only approved
substitute parts.
PTC STARTER SEALED
TERMINAL
COMPRESSOR
MOTOR
C
M
SM
36
5S
N
L1
OVERLOAD PROTECTOR
Resistance Starter Capacitor Running
PTC
22
4. ADJUSTMENT

4-3. WATER VALVE DISASSEMBLY METHOD
1) Turn off the power of the refrigerator (pull out the plug).
Open the FREEZER and REFRIGERATOR Door and
disassemble the Lower Cover.
2) Lay a dry towel on the floor and get ready to spill water
from the water tank.
Pull out the Clip. Then press the collet to separate the
tube from the connector and pour out the water until
emptied.
(Refer to the label attached on Front L on how to
separate the tube.)
3) Turn off the water. Then separate the water line from the
valve.
4). Separate the Mechanical Cover and Valve Screw.
5) Separate the housing and pull out the valve.
4-4. FAN AND FAN MOTOR DISASSEMBLY
METHOD
1) Using a short screwdriver, loosen one SCREW in
DRAIN PIPE ASSEMBLY and one connected to the
MOTOR COVER.
2) Pull and separate the FAN ASSEMBLY and MOTOR
turning counterclockwise based on the MOTOR SHAFT.
The assembly is in the reverse order of the disassembly
and take special care for the following details.
1. Be careful not to bend the tube during assembly.
2. Press the WATER DISPENSER button until water pours
out and check for leakage in the CONNECTOR TUBE (It
differs by the water pressure but usually takes about 2
minutes until water pours out.)
Mechanical Cover
Housing
Collet
Tube
Insert Line
Clip
→
→
MOTOR COVER
FAN ASSEMBLY MOTOR
- 16 -

- 17 -
4-5 OLP (OVERLOAD PROTECTOR)
4-5-1 Definition of OLP
(1) OLP (OVERLOAD PROTECTOR) is attached to the
Compressor and protects the Motor by opening the
circuit to the Motor if the temperature rises and
activating the bimetal spring in the OLP.
(2) When high current flows to the Compressor motor, the
Bimetal works by heating the heater inside the OLP,
and the OLP protects the Motor by cutting off the
current flowing to the Compressor Motor.
4-5-2 Role of the OLP
(1) The OLP is attached to the Sealed Compressor used
for the Refrigerator. It prevents the Motor Coil from
being started in the Compressor.
(2) For normal operation of the OLP, do not turn the Adjust
Screw of the OLP in any way.
4-6 TO REMOVE THE COVER PTC
(1) Remove the Cover Back M/C.
(2) Disconnect two housing upper side of comp connected
in.
(3) Loosen two screws on comp base.
(4) Use a L-shaped flap tool to pry off the cover.
(5) Assembly in reverse order of disassembly.
Part
Customer part
number
Lot code/
date code
330 FBYY -S1 BOX98
12345678
Physical
termination
part number
Electrical
characteristics
part number
No. Name
Base, phenolic
(UL 94 V-0 rated)
Movable arm support, plated steel
Stationary contact support,
plated steel
Heater support, plated steel
Heater, resistance alloy
Disc, thermostatic alloy
Movable arm, spring temper
copper alloy
Contact, movable, silver on copper
Contact, stationary, silver on copper
Slug, plated steel
Cover, polyester
(UL 94 V -0 rated)
Pin connector, plated copper alloy
(To engage 2.33/2.66 mm dia. pin)
Quick-connect terminal, brass,
conforms to UL 310, MEMA
DC-2, DIN 46344
(OVERLOAD PROTECTOR cross section)
Figure 19
2
3
1

5. CIRCUIT DIAGRAM
- 18 -

6. TROUBLESHOOTING
- 19 -
6-1 COMPRESSOR AND ELECTRIC COMPONENTS
1
2
3
4
5
2
5
5
3
5
1
43
YES
NO
YES
The range of resistance is between 1~50Ω(ok)
Open or short
YES YES
NO
NO
Power Source.
No Voltage.
(Rated Voltage
±10%)?
Replace OLP.
Reconnect.
Reference Page12.
Reference Page12.
Did
compressor
start?
Compressor
is OK
Replace the
compressor
Check connection
condition.
OLP disconnected?
Advise customer that
power supply needs to be
checked by an electrician.
Replace
Compressor.
Supply
voltage rating
with ±10%.
Applied voltage isn't
in acceptable range.
(115V ±10%)
Remove PTC-Starter
from Compressor and
measure voltage
between Terminal C of
Compressor and
Terminal 5 or 6 of PTC.
Check resistance
between M-C, S-C and
M-S in Motor
Compressor.
Check resistance of
two terminals in
PTC-Starter.
Check resistance of two
terminals in OLP.
Check the power supply
under load.
(Compressor attempting
to re-start after being off
for 5 minutes).
Check
resistance of
Motor
Compressor.
Check
resistance of
PTC-Starter.
Check OLP.
Check
starting state.

- 20 -
▼Not cooling at all
▼Poor cooling performance
Compressor
doesn't run.
Compressor runs
poorly.
Check starting
voltage.
Check for open short or
incorrect resistance readings
in the following components
a. Starting devices
b. OLP
c. Compressor coil
d. Wiring harness
Low voltage.
Short, open, or broken.
Poor contact
or shorted.
Coil open or shorted.
Poor contact
or shorted.
Poor or broken or
open contact.
Shorted.
Lack of capacity.
Replace
indicated component.
Advise customer that
the Power supply
needs to be checked
by an electrician.
Replace
indicated component.
Cause
Check voltage at
starting devices.
Check current flowing
in sub-coil of
Compressor.
Check rating of OLP.
Fan motor
doesn't run.
Heavy frost buildup on
EVAPORATOR.
Wire is open or
shorted.
Coil is shorted
or open.
Open.
Open. Replace
Defrost Heater.
Replace
indicated component.
Replace
indicated component.
Check wiring circuit.
Check Fan Motor.
Check current flow in
the following
components:
Sensor
Fuse-M
Check current flow in
the Defrost Heater.
6-2 OTHER ELECTRICAL COMPONENTS