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I have problems with the defrost - LG Refrigerators

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Ok I can definitely help you but need to know more about the problem, does it not defrost? What is the model of the fridge? Is it an LG as indicated?

Thanks
Tim

Posted on Oct 04, 2010

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Why does the freezer work but the fridge does not cool down


You have a defrost, or air circulation problem. If there is ice on the inside of the freezer walls it is probably a defrost problem, provided the freezer fan motor is running. If it isn't running the fan motor is the problem. If the motor is running it is a defrost problem. Three things can cause a defrost problem, the defrost heater is bad, the defrost terminator is bad, or the defrost timer is bad. On the newer refrigerators the defrost is controlled by a control circuit board. If it is bad it can be expensive. If you have an older refrigerator, I recommend replacing the defrost timer, the defrost heater and defrost terminator. When one goes bad, it effects the stability for the other parts to function properly, so replacment of all is best.

Jun 08, 2014 | Maytag MSD2454G Side by Side Refrigerator

1 Answer

My Maytag MBB1956GEQ


Your refrigerator appears to have a defrost problem. There are three parts tothe defrost system that may be causing the problem. The defrost timer located inside the controls panel just above the top shelf of the fresh food compartment. The defrost timer is seen as item 12 in this photo=> MBB1956GEQ_Controls Lets try to force defrost by turning the defrost time slowly clockwise until the compressor and fans stop. Leave the defrost timer like this up to 35 minutes and if the compressor and fans do not come back on automatically then the problem is the=> 67001036 Defrost Timer
1_9_2013_1_26_47_am.jpg
If the defrost timer functions properly and still the refrigerator does not go into defrost we will need to move to the defrost heater=> 67002135 Defrost Heater Assembly
1_9_2013_1_32_55_am.jpg

and the defrost thermostat=> 12001937 Defrost Thermostat
1_9_2013_1_43_33_am.jpg

The defrost timer and defrost heater are found inside the back wall of the freezer and the defrost heater can be tested by the instructions found on the same page as the 67002135 Defrost Heater Assembly
If you have any questions I will be here should you need more answers, Thanks Sea Breeze

Jan 08, 2013 | Refrigerators

1 Answer

Freezer is not defrosting properly , I already change the thermostat, my refigerator model is TBX74UL01 OR TBX74UB01.


If the thermostat is replaced, but still its not defrosting, then two possibilities, either weak defrost heater,Heater is the part which heats and it defrosts, if the heater gets weak, then unit will not defrost properly.And it will take more time to defrost, and till that time, again frost gets collected.---------- But if defrost heater is ok, then problem is defrost board.The defrost board is the part, which controls both thermostat and defrost heater.-----------
This problem is called defrost problem.-------------

So first thing you try is , perform, manual defrost reset procedure.---------

The manual defrost reset procedure is as follows : ----
First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. Then check,if same frost is getting collected, then its defrost problem,. If it's again building up ice that means the unit is not defrosting. It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. IN YOUR case, defrost thermostat is already got replaced, so ignore thermostat, but other two possibilities needs to be checked.----------You can get required parts from from online sites like: --- www.repairclinic.com or from searspartsdirect online site. --------- This should help.Thanks.Helpmech.

Sep 19, 2011 | GE Refrigerators

1 Answer

My freezer coils are completely iced over. How do i fix this?


Its defrost problem.You need to first try manual defrost procedure.This will completely defrost the ice.But if again after few hours or few days, same problem is noticed of coils getting iced, then its defrost problem.--------- In defrost problem, mostly fridge section section stops getting cool.It cools but not properly.----- And freezer section works properly. ------------

The manual defrost reset procedure. The procedure is as follows: ----

First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. It will take near to 4 hours to get run in its proper cooling cycle. Then check, if the problem returns again. Then its defrost board problem. -------------

If it's again building up ice that means the unit is not defrosting. It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. You can get required parts from from online sites like: --- www.repairclinic.com or from searspartsdirect online site. --------- This should help.Thanks.Helpmech.

Sep 11, 2011 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

Fridge not getting cold, set at coldest setting. bottom Freezer is cold though.


Hi.

The problem can be a defective defrost system. The defrost system comprises defrost thermostat, heater, defrost control and fan. The parts that fail more commonly are thermostat and heater. Both parts are located behind freezer firewall and tested reading impedance with a multimeter.

A test on the defrost system can be done by performing a complete defrost manually (remove food and leave power disconnected overnight). If the fridge restarts working after defrost, then problem was the defrost system. In that case the problem may return after few days or weeks, meaning that one part in the defrost system is faulty.Parts must be tested.

If the defrost makes no change, then there is a different problem. The damper ventilation system , the temperature control or the refrigerant gas pressure may be the problem. When the problem is one of these faults you get the compressor is running regularly, but will stay on most of the time.

If the motor is humming and clicking most of the time, but not properly starting, then the problem is usually the starter relay/capacitor. Relay and capacitors can be replaced to fix the problem.

Here a tip explaining how to deal with a similar problem on a different fridge model: Fridge not cooling. Procedure is similar on your model.

Regards.

Aug 06, 2011 | Amana Refrigerators

1 Answer

Refrigerator side is not cooling properly


Its defrost problem.

The defrost is not working,.The evaporator coil in the inner section of freezer is got blocked by ice .

Try manual defrost reset procedure: ----
First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. It will take near to 4 hours to get run in its proper cooling cycle. Then check, if the problem returns again. If the same problem occurs then it's defrost problem. The defrost board and the defrost thermostat/heater is not functioning properly and it has to be checked and replaced. -------

If it's again building up ice that means the unit is not defrosting. It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. You can get required parts from online sites like: --- www.repairclinic.com or from searspartsdirect online site.--------- This should help.Thanks.Helpmech.

May 29, 2011 | Kenmore Refrigerators

1 Answer

My refrigerator freeze work gest find but the bottom part of the refrig is not cooling?


The defrost thermostat is not functioning as it should.The problem is with defrost.

Try manual defrost reset procedure first : ----
First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. It will take near to 4 hours to get run in its proper cooling cycle. Then check, if the problem returns again. If the same problem occurs then it's defrost problem. ---------- . It's starting the cooling procedure, and then while defrosting, it's not working. The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem. You can get required parts from online sites like: --- www.repairclinic.com or from searspartsdirect online site.This should help.Thanks.Helpmech.


Apr 06, 2011 | Refrigerators

2 Answers

The freezer is working but the refrigerator is not getting cold


Hi.

Possible faults causing the problem are either a frozen damper fan blades, broken damper motor or a defective defrost system.

If there is no air circulation then problem is likely frozen fan blades, less commonly faulty damper motor. The defrost system may still be responsible, as this fault is often confused with air circulation problem (see below).

If the fault is given by frozen fan blades you will get rid of the problem by simply performing a full defrost (leave unit off overnight).

If the problem is the defrost system, a defrost may temporarily fix the problem, but the fridge will stop cooling again as soon as ice build up comes back, usually after days or weeks from defrost.

The function of the defrost system, located at the back of the freezer firewall, is to prevent condenser coils at the back of the fridge from cooling down and icing up. When the defrost system is defective you get poor cooling, particularly in the fridge section.

You can test if the problem is the defrost system by leaving the unit disconnected or off for 24 or 48 hours.

As said, if problem was the defrost system, then the problem will disappear after full defrost, to come back in a couple of weeks.

Other problems that can cause insufficient cooling are compressor problems, refrigerant leaks, and depending on the model, electronic control faults.

Start doing a defrost for 12 or 24 hours. Cross fingers and hope that the problem was fan blades frozen. You can follow the general troubleshooting illustrated here (the article refers to a different fridge, a Whirpool built Kenmore model, things are not too different on your Model): Kenmore side by side...

You can find parts and diagrams for most models using the link below:

Where do I find parts and diagrams?

Regards.

Aug 10, 2010 | Frigidaire FRS3R5EMB Side by Side...

3 Answers

Set defrost timer on Paragon Electric Defrost-O-Matic


If the air flow and temperature are not being compromised leave it alone. If there is a gradual build up of ice on the evaporator you may have a defrost element or defrost limit switch problem. Set the defrost duration duration to 45 minutes and see if that solves the icing problem. 4 defrost cycles a day should be enough to keep the icing problem at bay. 3 defrost cycles at night about 1 hour apart may also remedy the problem. Experiment until you find the right combination of defrost cycles for your freezer. Watch for any thawing of the product in the freezer and adjust accordingly.
Bills Refrigeration/Montana.

Nov 14, 2008 | Paragon 8145-20 Defrost Timer

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