DOWNLOAD LG LWC0961AHG_ABG_AHE / LWC0961PHG_PBG / W09LH Service Manual ↓ Size: 1.58 MB | Pages: 35 in PDF or view online for FREE

Model
LWC0961AHG_ABG_AHE LWC0961PHG_PBG W09LH
Pages
35
Size
1.58 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lwc0961ahg-abg-ahe-lwc0961phg-pbg-w09lh.zip
Date

LG LWC0961AHG_ABG_AHE / LWC0961PHG_PBG / W09LH Service Manual ▷ View online

—24—
ROOM AIR CONDITIONER VOLTAGE LIMITS
Check voltage at outlet. Correct if none.
Check voltage to rotary switch. If none, check
power supply cord. Replace cord if circuit is open.
Check switch continuity. Refer to wiring diagram
for terminal identification. Replace switch if
defective.
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
Test capacitor.
Replace if not within ±10% of manufacturer's
rating. Replace if shorted, open, or damaged.
Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
Units using slinger ring for condenser fan must
have
1
/
4
to
5
/
16
inch clearance to the base. If it hits
the base, shim up the bottom of the fan
motor with mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
Check voltage. If not within limits, call an
electrician.
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace
the motor.
No power
Power supply cord
Rotary switch
Wire disconnected or
connection loose
Capacitor (Discharge
capacitor before testing.)
Will not rotate
Revolves on overload.
Fan motor will not run.
Fan motor runs
intermittently
COMPLAINT
CAUSE
REMEDY
NAME PLATE RATING
MINIMUM
MAXIMUM
220-240V~ ±10%
198V
264V
—25—
COMPLAINT
CAUSE
REMEDY
If cracked, out of balance, or partially missing,
replace it.
If cracked, out of balance, or partially missing,
replace it.
Tighten it.
If knocking sounds continue when running or
loose, replace the motor. If the motor hums or
noise appears to be internal while running,
replace motor.
Check voltage. See the limits on the preceeding
page. If not within limits, call an electrician.
Check the wire connections, if loose, repair or
replace the terminal. If wires are off, refer to wiring
diagram for identification, and replace. Check wire
locations. If not per wiring diagram, correct.
Check for continuity, refer to the wiring diagram
for terminal identification. Replace the switch if
circuit is open.
Check the position of knob If not at the coldest
setting, advance the knob to this setting and
restart unit.
Check continuity of the thermostat. Replace
thermostat if circuit is open.
Check the capacitor.
Replace if not within ±10% of manufacturers
rating. Replace if shorted, open, or damaged.
Check the compressor for open circuit or ground.
If open or grounded, replace the compressor.
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
Check the voltage.
If not within limits, call an electrician.
Check overload, if externally mounted.
Replace if open. (If the compressor temperature
is high, remove the overload, cool, and retest.)
Check the system for a restriction.
Fan
Blower
Loose clamper
Worn bearings
Voltage
Wiring
Rotary
Thermostat
Capacitor (Discharge
capacitor before servicing.)
Compressor
Overload
Voltage
Overload
Refrigerating system
Fan motor noise.
Compressor will not run,
but fan motor runs.
Compressor cycles on
overload.
—27—
MODEL : LWC0961AHG/ABG/AHE
MOTOR
COMP.
1
2
4
6
8
7
H
L
C
F
C
C
H
L3
L2
L1
DEICER PWB ASSY
BK(BR)
(Plain)
WH(BL)
(Ribbed)
WH
WH
BL
BL
BL
BL
BL
RD
RD
BK
BK
BK
BK
BK
BK
BK(RD)
BK(RD)
BK
BK
BL
RD
RD
RD
YL
YL
YL
YL
OR
OR
OR
OR
R/SWITCH
BR
BR
O.L.P.
T/B 2
THERMISTOR
THERMOST
A
T
BL
BK
BK
LAMP
BK
BR
T/B 1
CAPACITOR
REVERSING COIL
WIRING  DIAGRAM
3854A20022M
MOTOR
RD   
BK   
BL   
BK   
RD   
BL   
BL   
OR(BR)   
BK 
RD    
OR(BR)  
YL    
CAPACITOR
R
C
COMP.
TRANS-
FORMER
S
RD   
THERMISTOR
BK   
OR(BR)  
BK(BR)  
POWER  INPUT
(Plain)
CN-TH
RY-HI
CN-DISP
DISPLAY 
P.W.B ASSY
RY-COMP
ZNR
MAIN P.W.B ASSY
RY-4WAY
CN-4WAY
BK(RD)
BK(RD)
BK
T/B 1
T/B 2
BK
SUMP
HEATER
BK
BK
RD
RD
RD
RD
REVERSING COIL
4
3
RY-LO
GN/YL(GN)
WH(BL)
(Ribbed)
YL    
BR   
BR   
SYNC.
MOTOR
CN-
SYNC
RY-SYNC
GN/YL
(GN)
FUSE 
250V/T2A
(115V/T2A)
OLP
MODEL : LWC0961PHG/PBG
5. SCHEMATIC DIAGRAM
5.1 CIRCUIT DIAGRAM
—28—
5.2 DEICER P.C.B. ASSY
MODEL : LWC0961AHG/ABG
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