LG Refrigerator Model GR-721R Serial105KR00046 The freezer is working properly set on minimum cooling, but the Refrigerator only cools to about 50 deg F set on max cooling. The freezer fan motor is noisy at times.

Error code list is given on LG Official website
LG Refrigerator - Error Code List ' LG USA Support

Error code P5 is not listed in error code list. Please mention exact error code.

LG Help Library Error Codes Refrigerator LG

The refrigerator side is at present working properly , but slowly slowly, it will also loose its cooling.This will happen because, freezer side is the side which cools first, then the refrigerator side ( also called as fridge side)., gets cooled.If freezer side is not cooling / freezing properly then fridge side will also loose its cooling ability.------------ And later on both section will loose its cooling.----------- As per the present situation, it indicates problem with compressor or problem with freezer side door not closing properly.---------- Or the temperature in freezer section is not set to proper cooling/ freezing.--------- So first inspect temperature, is it set right? If ok, then check the freezer door , is it properly closed? If ok, then its compressor problem.? The compressor is running non stop, this is indication of compressor problem.---------- Click this link below for more help:--- http://technoanswers.blogspot.com/2011/06/both-refrigerator-and-freezer-not.html ----------- Later on both section will loose its cooling. -------- This will help.Thanks.Helpmech.

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigeratornot Cooling or Fridge not Cooling

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WaterRunning in refrigerator from Freezer

Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

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Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigeratornot Cooling or Fridge not Cooling

How to Defrost Refrigerator DefrostTimer Problem

WaterRunning in refrigerator from Freezer

Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

Hi,

Check out these tips...they can help you figure out what is going wrong with your refrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold

heatman101

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold
heatman101
..

The channel in the back were the cool air comes down from the freezer to the fridge may be iced up. Try defrosting the fridge/freezer for much longer than usual, all day if necessary.

Well yes..i think i solved the problem..
In this model i figured out that the cooling system for both rerigerator and freezer compartments are affected by each other.
If you switch freezer to high number (e.g 4 5 6 7) above 3 which is normal, this would affect rerigerator and become warmer.
Just put freezer to 3 and wait for temperature to stabilize when first operated and it is going to cool effeciently.

Hi and welcome to FixYa,

Almost always, your described problem could be either:

• evaporator fan/blower is faulty; or
• air passgaeway blocked or vent is blocked or closed.

The refrigerator section gets its cold air from the freezer. If the freezer is working then the frozen air would have to be drawn to the refrigerator side by the fan. If the fan is not working or the air passage way is blocked, then no frozen air would be moving towards the refrigerator side. result would be as you described.

In some instances, it could be the thermostat of the refrigerator but this would be least likely.

Good luck and thank you for using FixYa.