When an icemaker slows production, the problem is not the icemaker at all but the temps in the freezer warming up because of an airflow problem either in the freezer compartment evaporator coils or underneath the unit that being the condenser coils. (Fan not working or lint blockage)
Airflow problems in the freezer compartment are caused by the fan or the automatic defrost system not functioning properly so yu end up with an ice block / lots of frost in the freezer compartment on the back wall of the compartment.
Check for ice or large amounts of frost in the freezer compartment. If you note ice / excessive frost, unplug the unit, empty the freezer compartment and do a manual defrost by directing an external fan into the compartment for just over 2 hours. This will ensure the evaporator coils and the freezer compartment drain have thawed. While the manual defrost is in progress remove the rear fiberboard cover from the compressor access and check / clean the condensor coils and fan area.
After 2 hours clean up the excess water.. reassemble the rear cover and return the unit to NORMAL service. It should start making lots of ice in 4 to 6 hours. Here is the kicker... if there is an auomatic defrosting problem your icemaker will after 2 - 3 days again slow ice producion and ice will build up in the evaporator area. You will have to keep repeating the manual defrosting process every 3 to 4 days until the automatic defrost system is repaired.
There are 3 main components of the Automatic defrost system:
1. Defrost control
2. Defrost heater
3. Defrost thermostat or depending on type thermistor
Most of the time the problem is either the defrost control or the heater that fails and the unit stops defrosting.
Your parts can be found here:
http://www.searspartsdirect.com/partsdirect/part-model/LG-Parts/Refrigerator-Parts/Model-LSC26905TT/3204/0165000
Thanks for choosing FixYa,
Kelly
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