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My freezer is blowing cool air but not cold enough to freeze.. coils are not iced over

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Low freon

Posted on Feb 03, 2010

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Not freezing


Hello Jim;

My name is Peter. I am a retired field service refrigeration technician.

If you are getting cooling and not freezing your problem is not your overload relay or capacitor, otherwise you would get no cooling at all.

You have one of 4 potential problems.

1.) Frozen Drain - This is a common problem. Your unit goes through a defrost cycle every 8-10 hours, everything shuts down for about 20-30 minutes. This is when your defrost heater turns on and defrost your cooling (evaporator) coil. If your drain is frozen, a wall of ice builds up behind your lower back wall. This prevents the cooling fan from running and air flow through the cooling coils.

You need to remove the lower back cover to see what is going on. there are several screws holding it on. First remove the rubber seals on both sides. They just pull out.

If it is a block of ice, use a hair dryer to melt the ice and clear the drain. Do not try to chip away, you will damage the coils.

2.) If you observe the cooling coil fan not running and vibrating, then you need to replace the fan.

not-freezing-q5gyx04vmzg44gwribm3t5si-2-0.jpg Part Number: Substitution: 3-60336-001 Cost from Sears: $115.00. You can search the internet and get this part for about $80.00.

3.) Defrost Heater - You may have a bad defrost heater. Observe, is the glass tube black or is the wire inside broken?
not-freezing-q5gyx04vmzg44gwribm3t5si-2-2.jpg Part Number: Substitution: 3-80405-003 Cost: $40.00

4.) Refrigerant leak or obstruction - If you observe a block of ice in the upper right hand corner of your cooling coil, then you either have a leak or an obstruction. A repair of this nature with a service company is about $500.00.

5.) Bad Bi-Metl (Thermostat) - In the upper right corner is your cooling coil thermostat.

not-freezing-q5gyx04vmzg44gwribm3t5si-2-5.jpg Part Number: Substitution: 1-81801-001 Cost: $30.00

If you observe the flat back has popped open, then replace.

Sep 12, 2013 | Whirlpool EV181NZTQ Upright Freezer

1 Answer

Not cool enough to freeze the food


Hello,

Let's start by diagnosing the freezer;

Fan problem is one of the most common reasons for the freezer to start failing, this is called "frost free failure." Ice can build up on the evaporator coils over time, and this ice builds up until it starts blocking the fan. The fan is responsible for circulating cold air throughout the freezer, so if it is blocked the freezer will not be able to freeze any food. You can usually check this by removing an access panel in the back of the freezer to inspect the coils. If ice is built up on the coils, a hairdryer can assist in defrosting them.

It's also possible that the fan is not running at all. If the fan is burned out or the motor isn't running, cold air can't circulate through the freezer and everything will melt. You can normally hear the fan motor switch on and off from time to time. Listen for it and if you can't hear it coming on for an extended period of time, the motor may need repair or replacement. The wires connecting to the fan may be the problem, preventing the fan from receiving electricity.

Several other problems could be keeping your freezer from freezing:

There could be leaks in one or several of the hoses in the refrigerator, which results in the cold air being lost instead of circulating properly throughout the fridge and freezer.

If you have the freezer so full that the cold air can't circulate, your food will thaw even though the freezer isn't malfunctioning. Always leave some space open in the freezer and try to not store food right up against the cooling vents.

The thermostat might have shorted out, which means the freezer can't accurately determine how cold it is. If this is the case, the refrigerator would probably not be working, either.

If your defrost drain becomes clogged, the water in the line will just refreeze over and over again, which could damage the lines as well as the fan. Always check the drain and make sure no sludge is building up in it if you have a self-defrosting refrigerator.

Always try to keep the freezer door closed for long periods of time. The more the door is opened, the more warm air is let in and cold air is released. If the door is opened frequently, the freezer could be warming faster than the fridge can cool it, which will thaw your food.

I hope this helps.

Regards.

May 02, 2011 | Frigidaire 20.3 Cu. Ft. Frost-Free Upright...

3 Answers

I have a Artic Air White Reach In Freezer. It is not blowing cold air from he top where the cold air comes in. Freezer was at 60 degrees F. I turned the defrost switch to make sure it wasn't in...


Is the freezer itself getting cold.To blow cold air.the freezer should get cold/friezed.the cold air blows from freezer to fridge side.first the freezer side gets cold, then when the freezer side gets enough cool to its set cooling temperature, at that time the defrost cycle starts.In defrost cycle the fan in the freezer starts running and the cool air from freezer starts going to fridge side.There is a ventilation passage between fridge and freezer from where this cool air passes.---------------- If in your case, the freezer is getting proper cold, but its not blowing cold air from freezer to fridge, then possibility is that, there is a blockage in ventilations.But if ventilation its clear, then its defrost problem.First try 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. ------------------------- BUT if in your case, the freezer section itself is not getting cold, then the problem is compressor related.The compressor is the part which cools the freezer frost.In the compressor, there is a refrigerant to cool the freezer.If the compressor gets weak or the refrigerant gets low, then it will not cool the freezer, if the freezer is not cool then it will blow warm air from freezer to fridge, in defrost cycle.In that case, the compressor is faulty and its the cause of problem.------------ So you will have to first check , that is your freezer getting cold or not.as per that you can start the troubleshooting.------------------

You can get required parts from from online sites like: --- www.repairclinic.com or from searspartsdirect online site. --------- This should help.Thanks.Helpmech.

May 01, 2011 | Arctic Air Freezers

1 Answer

Imperial commercial upright. Top shelf is icing and frezzing bottom is not freezing.


Hi,

Fan problem is one of the most common reasons for the freezer to start failing, this is called "frost free failure." Ice can build up on the evaporator coils over time, and this ice builds up until it starts blocking the fan. The fan is responsible for circulating cold air throughout the freezer, so if it is blocked the freezer will not be able to freeze any food. You can usually check this by removing an access panel in the back of the freezer to inspect the coils. If ice is built up on the coils, a hairdryer can assist in defrosting them.

It's also possible that the fan is not running at all. If the fan is burned out or the motor isn't running, cold air can't circulate through the freezer and everything will melt. You can normally hear the fan motor switch on and off from time to time. Listen for it and if you can't hear it coming on for an extended period of time, the motor may need repair or replacement. The wires connecting to the fan may be the problem, preventing the fan from receiving electricity.

Several other problems could be keeping your freezer from freezing:

There could be leaks in one or several of the hoses in the refrigerator, which results in the cold air being lost instead of circulating properly throughout the fridge and freezer.

If you have the freezer so full that the cold air can't circulate, your food will thaw even though the freezer isn't malfunctioning. Always leave some space open in the freezer and try to not store food right up against the cooling vents.

The thermostat might have shorted out, which means the freezer can't accurately determine how cold it is. If this is the case, the refrigerator would probably not be working, either.

If your defrost drain becomes clogged, the water in the line will just refreeze over and over again, which could damage the lines as well as the fan. Always check the drain and make sure no sludge is building up in it if you have a self-defrosting refrigerator.

Always try to keep the freezer door closed for long periods of time. The more the door is opened, the more warm air is let in and cold air is released. If the door is opened frequently, the freezer could be warming faster than the fridge can cool it, which will thaw your food.

I hope this helps........

Good luck.

Apr 12, 2011 | Freezers

1 Answer

I have a GE GTS 221C fridge/freezer. The fridge is working fine. All of a sudden, the freezer is not freezing. Just cold, but not enough to keep food frozen. The fan on the freezer is working.


remove the rear cover inside the freezer if it has a lot of frost on it,then the evaporator coil is frozen up and you cant blow cold air over or thru a solid block of ice,defrost it,then check the defrost heating element,defrost thermostat and timer or defrost circuitry for no power or defective components,you can use a hand held hair dryer to defrost it quicker

Jan 08, 2011 | GE Freezers

1 Answer

COMPRESSOR WILL FREEZE A CYCLE OR 2 THEN STOP WORKING


a symptom of low refrigerrant is that the evaporator coil will develop a small very cold area but wont cool the entire surface .. that cold area can ice up and block air flow .. the result can be an overworked compressor with little or no cooling ... other things that can cause the same trouble
1. bad or blocked air flow on the external coils or condenser fan ..
2. a leak in the door seal will allow moisture that can cause icing

if there is icing then you can turn it off with the door open until the ice melts .. then start over ..

Jul 24, 2009 | Freezers

1 Answer

My frigidaire FFU20FC6AW7 is not freezing. sides are cool to the touch and they are normally hot. cold air blowing out about 40 degrees.


If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.
How to check stuff>
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

Jul 12, 2009 | Frigidaire 20.6 cu. ft. / 583 liter...

1 Answer

No longer freezes


The evaporator fan in the back of the freezer blows over the cooling coils. Those coils are typically hidden from view behind a panel.

The problem you describe would lead me to suspect that the coils are iced over. That is why there is some cold, but not enough. The fan is blowing over a block of ice. An overfilled freezer is another possibility.

Iced over coils may be the result of a malfunctioning defrost system, a plugged drain tube, a poor seal on the door seals to the cabinet resulting in a lot of moist air entering the freezer (or fridge) or the refrigerant level is under pressure (needs more refrigerant added).

Most refrigerators never need refrigerant added, but after 25 years, it could be that yours does. However, it can only be done by a pro, and it probably isn't worth investing that kind of money in such an old fridge.

I recommend you start by unplugging the fridge and inspecting the coils inside the freezer. If they aren't iced over, then the door seals may be still be the problem by letting in warm air.

Jan 19, 2009 | Avanti Freezer CF62

2 Answers

Running but does not get cold enough


feel the sides or the coils on back if it has any see if they are hot or cold

Feb 20, 2008 | Maytag 15 cu. ft. / 425 liter Upright...

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