LG LSC27990TT Service Manual page 54

TROUBLE DIAGNOSIS
CLAIMS. HOW TO CHECK
4. Warm
refrigerator
compartment
temperature.
5. No automatic
operation.
(faulty
contacts)
6. Condensation
and ice
formation.
CAUSES AND CHECK POINTS.
1) Clogged cooling path.
Adiabaticsliquid leak?.
Foreignmaterials.- Adiabaticsdump liquid
2) Food storage. Storehotfood.
Storetoo muchat once.
Dooropen.
Packages blockair flow.
1) Faulty temperature sensor in freezer or refrigerator compartment.
_ Faulty contact.
Faultytemperaturecharacteristics.
2) Refrigeration load is too much. Food. ,Toomuchfood.
L Hotfood.
Frequent o peningandclosing.
Coolair leak.
Poordoor close.- Partlyopens.
3) Poor insulation.
4) Bad radiation. _ Highambienttemperature.
Insufficient spacearoundrefrigertor.
5) Refrigerant leak.
6) Inadequate of refrigerant.
7) Weak compressor discharging power. _ Different r ating.
Smallcapacity.
8) Fan does not work.
9) Button is set at strong.
1) Ice in freeezer compartment.
External air inflow. -- Bushing installed incorrectly.
Dooropens Weakdoorclosingpower.
but not closes. Stoppermalfunction.
Doorsag.
Foodhindersdoorclosing.
Gap around gasket.-- Contraction,distortion, l oose,door twisted,corner not
fullyinserted.
Foodvapor. -- Storinghot food.-- Unsealedfood.
2) Condensation in the refrigerator compartment.
Dooropens Insufficient closing.
but not closes. Doorsag.
Foodhindersdoorclosing.
Gasketgap.
3) Condensation
Coolair leak
andtransmitted.
on liner foam.
Notfullyfilled. • Toptablepart.
L OutplateRef/Lower p art.
Flangegap.-- Notsealed.
Gasketgap.
• Inspect parts measurements
and check visually.
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