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Popular LG LRTN19314TT Manual Pages
Service Manual - Page 15
... the automatic icemaking mechanism while the refrigerator is on some models) to prevent serious property damage due to begin making ice. Throw away the first few batches of ice to allow the water line to freezing. A newly-installed refrigerator may take up to O (off) and shut off ). Operation instructions A newly-installed refrigerator may take up . When you...
Service Manual - Page 17
.../OFF status).
2-1-3. When any button turns on the display part.
2. MICOM FUNCTION
2. Function of Temperature Selection
Division Power Initially On
1st Press
2st Press
3th Press
4th Press
5
5
5
5
5
Setting
4
4
4
4
4
temperature
3
3
3
3
3
2
2
2
2
2
1
1
1
1
1
Temperature Control
Freezer Control
Refrigeration Control
Medium -2 °F 37 °F
Medium Max...
Service Manual - Page 25
... product
Electromechanical parts of the appliance, such as the compressor, defrost heater, freezer fan, cooling fan, and damper motor, are operated sequentially as shown in Test Mode 2 or if the temperature of a defrost sensor becomes less than 45°C (In purchase, movement)
POWER 0.3 sec. OPTICHILL STEP
DAMPER
MOTOR
ON
Remark
If error occurs...
Service Manual - Page 26
... will be displayed as usual. 4. All other Model
FAILURE CODE
- Failure Diagnosis Function 1. When the appliance enters the failure mode, pressing buttons has no signal of BLDC
q Standard OFF
q
q
BLDC motor
motor more than freezer room notch temperature display and refrigerator room notch temperature display(failure code indication part) in case of indicating failure modes(except...
Service Manual - Page 72
... visually.
- Check the clearance between
refrigerator and wall (50 mm in compressor compartment.
- Confirm icing causes and repair. Check resistance with vacuum
cleaner from grill for easy heat radiation.
- Maintain clearance and remove ice (Repair and/or replace shroud if fan is cut .
- Remove dust and contaminants
compressor compartment. TROUBLE DIAGNOSIS
- 72 -
2-3.
Service Manual - Page 74
...clogged. Direr must be replaced. Manually check whether
evacuate, and recharge refrigerant.
Check that cooling fan is clogged. Replace if motor does not operate. - Problems
Causes
High temperature in ... disconnect
manually. Cycle pipe is
disconnected from the motor.
- the refrigerant.
2.
the pipes, and check the clogging. If it is not warm
and the frost forms partly on...
Service Manual - Page 75
...hand and assemble the disconnected parts. Suction tube and discharge orifice: 1. Defrosting failure Problems
Causes
Checks
Measures
Remarks
No defrosting. In case 1) Push out impurities by inserting
of tester[Ω])
Compare P and lavel capacity.
Put hot water into the formula. How to replace :
substituting the resistance value Refer to repair.
Confirm in the Suction...
Service Manual - Page 76
...
described in the refrigerator remove the parts and replace it operates, motor fan assembled parts.
Turn on , melt the frost by forced defrosting.)
2. around the housing visually,
defrost, and confirm heat generation
on
the sheath heater.
3. Remarks
If 0Ω: OK. Faullty parts: parts replacement. - Check the inner duct with a new one.
TROUBLE DIAGNOSIS
- 76 - Check...
Service Manual - Page 78
.... Check door assembly conditions. - Door assembly and replacement.
- Refrigerator operates pull down. (Check if it . Check parts related to use .
- Check ice on the ice tray.
- Door opens.
- TROUBLE DIAGNOSIS
- 78 -
Cool air
dissembling shroud and fan grille. shute.
- Replace when it can not be repaired.
3) Over freezing in
defrosting).
- Heater wire is...
Service Manual - Page 82
.... Chedk food cleanliness.
- Check the deodorizer odors.
- Odor Problems
Food Odor. Clean the refrigerator. - deodorizer.
- Remove and replace the deodorants.
*Deodorizer : option
Dry the deodorizer in the new refrigerator.
- Odors of vinyl wraps.
- Clean the refrigerator and set button at strong. Check wet food is not wrapped. - TROUBLE DIAGNOSIS
- 82 -
2-8.
Service Manual - Page 83
... PCB is cut when power is bad.
Reconnect connector.
model without
dispenser.
Defective LCD.
Defective PCB transformer. Check if STR No. 2 and 3 pins are off . Replace regulator. Replace parts. Check if all LCD are on connector connection.
TROUBLE DIAGNOSIS
- 83 -
2-9. Micom Problems
Symptom
Bad PCB
All display
electric power. LCD are...
Service Manual - Page 86
TROUBLE...tester after pressing main PCB test switch twice.
Key is cut with a tester. Problems
Symptom
Causes
Checks
Measures
Remarks
Bad defrost.
Defective connecting lead wire from main PCB...resistance of defrost sensor Replace defrost
with a tester. Repair lead wire. Key input wire is cut or bad connector terminal contact in parts repair guide.
driving conditions
check ...
Service Manual - Page 87
.... display button. Measures Repair troubles
Remarks
Refer to lever switch. Defective relay associated with a tester.
Check model with water dispenser.
Door Buzzer
Buzzer continuously rings or door opening alarm does not work. Replace lever switch.
Defective connecting lead wire from Main PCB to mode indication in parts repair guide. Defective freezer compartment door...
Service Manual - Page 88
...733;
Plug 5 Refrigerant weighing. repairing refrigerator cycle piping.
7 Leak check.
-Do not use the parts.
4 Refrigeration Evacuation
Cycle.
time
Min. with reverse flow protect plate. It may be melted when they are evacuated at the
L same time for R134a refrigerator the moisture -Replace drier whenever from cracking.
3 N2 sealed parts.
In case of evaporator parts, if it doesn...
Service Manual - Page 89
...Cutter, Gas welder, N2 gas - Electronic Leak Detector, Driver (Ruler).
- Weigh and control the allowance of more...Repair Process Trouble
diagnosis
Contents
Tools
Remove refrigerant Residuals
Parts replacement and welding
Vacuum
Refrigerant charging and
charging inlet welding
Check refrigerant leak
and cooling capacity
Compressor compartment
and tools arrangement
Transportation and
installation...
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