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My refrigerator will not get cold the freezer gets cold it also has frost on the back panel in the freezer

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You have a problem with the defrost circuit of your refrigerator. The frost is building up on the evaporator coils in the freezer preventing air circulation from the refrigerator to be cooled off by the coils. It is made up of three parts, the defrost timer/control module, defrost heater, and thermostat.

The way it works is that normally the compressor has power for 8- 24 hours, then the timer/module cuts power off and sends power to the defrost heater for about 45 minutes. The heater is attached to the coil and warms up the coil to melt the ice. When the coil reaches about 40 deg F, the thermostat which is in series with the heater, opens up cutting off power to the heater. This prevents the freezer from getting too hot. After the 45 minutes are up, the timer/module switches the power back to the compressor again to restart the cooling cycle.

I don't know what make and model fridge you have since you did not supply it. But if you have an older model it is controlled by a timer, often it fails to advance to the defrost mode causing it to stay in cool mode. Often the problem is that the defrost heater burns out so it can't melt the frost on the coils.

If you take the panel off the back of the freezer you will find the evap coil. You can use a hair dryer to melt the ice. The heater will be attached to the coil. If you have a meter you can check whether it is burned out. Replacement parts can be found at your local appliance repair outlet or online at repairclinic.com.

Posted on Mar 24, 2011

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I have an Amana refrigerator with bottom freezer. We just moved in to the home and landlord is out of town. The freezer is cold and I can see frost blowing but nothing is freezing. The food we put in there...


Hi,

Many times a freezer and/or refrigeratordo not work right because of a dirty condenser coil...there are also many otherthings that can go wrong. If you are hearing a clicking or buzzing thencheck out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to starttrouble shooting your unit...and something that you can do rather then callinga repair person to do a simple thing for you...

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heatman101

Aug 10, 2011 | Microwave Ovens

1 Answer

Freezer working fine but fridge not gettind cold.


The first thing you need to check is whether the fan is operating, moving the cold air from the freezer to the refrigerator. If it is operating, you should be able to feel air flow in the refrigerator when the fan is operating. If you don't but the fan is operating then the cooling tubs are probably clogged with ice or frost.

Jul 20, 2011 | Smeg Microwave Ovens

1 Answer

FRIDGE button is set on 3, red light flashes, air system works but it is not cool for at least 1 hour, Freezer set on 4 S and works.


Start out with the easy stuff first...make sure the lights go out when you close the door(s), make sure the doors are closing properly and the gaskets are closing fully and not torn. Check to make sure the evaporator fan in the freezer is working, this fan blows the cold air around. If the fan is not working, possible bad fan motor - check for power to the fan motor and also check the fan switches around the door openings, ( if your fridge has these switches, not all do ). A common problem cropping up in the last several years has been the air damper not opening up and allowing the cold air from the freezer to be blown into the fresh food section ( mostly on SxS refrigerators ). For many years the air damper was manually operated and now we have motorized controlled or temperature controlled or thermistor and electronic boards controlling air dampers, and if this device sticks closed the FF section will normally warm up. An example picture of "one" style and an air damper ( called a diffuser by Whirlpool ). Next would be to check the condenser tubing, a good place to start is to make sure the condenser coils are not built up with dust!! Make sure the condenser fan motor is also working properly. Check for any "clicking on and off" noises from the compressor, is the compressor running.
The most common fridge "not cooling" problem is a frost free failure. Remove the access panel in the freezer section to expose the evaporator coils. If the coils in the freezer section get plugged up with frost, this frost will block the evaporator fan motor from blowing the cold air around. The fan blade can also hit this frost and either become noisy or stop altogether. Locating the defrost timer can be tricky....they are often hidden behind the back bottom corners of the fridge at the bottom, in the last few years the timers have been located in the ceiling of the fresh food section, and some behind the cold control cover. Once you locate the defrost timer, slowly turn the screw like wheel in the middle of the defrost timer with a straight screwdriver until the fridge shuts off. You are now in defrost. If the defrost heater(s) comes on now, replace the defrost timer and defrost thermostat. If the heater(s) does not come on, you can ohm test the defrost heater for continuity or volt test for 120 volts to the heater(s). If you have no power to the defrost heater(s) you can also bypass the defrost thermostat to see if the defrost heater will come on, join the 2 wires together to bypass the defrost thermostat. If the heater now comes on, replace the defrost timer and defrost thermostat. If the heater itself is bad, defrost the fridge with a hair dryer, replace the defrost heater* and defrost thermostat. If the defrost timer seems "hot" to the touch or is noisy ( like a ticking or screeching noise )...replace it. Then make sure all the vents are clear and not being blocked by food cartons. One new safety device added to refrigerators in the last few years has been a in-line fuse added to both sides of the defrost heater. If one of these fuses let's go, you must replace the whole defrost heater, as it comes as an assembly. If the defrost heater does not work, you should check for one of these fuses being open. Check it with a volt meter or ohm meter.
New link from Appliance Repair Aid on how the wiring circuit works for a frost free fridge, the link is here.
On a frost free refrigerator, the cooling coils should be in the freezer section. On a SxS style refrigerator the coils will be behind a cover on the back wall. On a freezer on top style the coils could be behind the back wall or under the freezer floor. Removing the cover and exposing the evaporator coils could be a valuable tool. Seeing what the cooling coils looks like may help split your not cooling problem. Totally covered coils with white snow is a frost free problem. and the rest are bare is an indication of a system problem
If you find this helpful, a vote with the thumbs up would be appreciated for the free advice

Jul 13, 2011 | Microwave Ovens

1 Answer

Freezer works but frig not cooling


if you were to reach your hand towards the rear inside the fridge area can you feel cold air blowing into the refrigerator side if not this could either be due to the fan inside the freezer area not working or there is a small door that is controled by a thermostat inside the ceiling of your refrigerator this thermostat when it reaches a tempreture that is to warm it opens a small door in the rear that connects to the freezer allowing cold air to come into the refrigerator side when the refrigerator becomes cold enough the thermostat then shuts the door. You could also have a defrost issue inside the freezer area in which u would need to remove the rear panel in the rear of the freezer in order to assure you did not have this issue. If you remove the rear panel and you see any ice build up on the evaporator coil (note this is also where the fan that blows the cold air into your refrigerator is located)you would have a defrost issue. If you remove that rear panel and find any ice build up message me back and il instruct how to fix but first check to assure you have air blowing into the refrigerator side. If you dont then you have to diagnose which is causing the issue either the fan which you could hear if you listened inside of the freezer area or the door itself is not opening due to a malfunction with the thermostat if you have any further questions message me back and please also remember when our chat has fully conlcuded to rank how this opinion has helped it allows me to continue helping others in similar situations Thanks
Rick

Jun 24, 2011 | Microwave Ovens

1 Answer

Defrost heater,every 2 weeks back of freezer frosts over, fridge gets warm, manualy dethaw get 2 more weeks


Hi,

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

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Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

Jun 06, 2011 | Microwave Ovens

1 Answer

My fridge is not very cold but the freezer it fine


Check the back wall or floor of the freezer section for frost. Check the freezer( evaporator) fan to see if it is running. Check the condenser coils( under the unit ) for blockage from dust. Check the condenser fan (under the unit) to see if it is running.

If you have frost in the freezer there is a problem with the defrost system and the freezer will start to warm eventually as well as the fresh food section. If that is the problem you can check the defrost terminator, defrost heater/s, and the defrost timer or adaptive defrost control If used on your unit or the main control board if so equipped. These things usually require dismantling the freezer and other areas of the refrigerator to be checked.

You could defrost the freezer by disconnecting the power to the refrigerator and letting it sit for at least 24 hours with BOTH DOORS WIDE OPEN to allow the frost to melt completely but it will build up again in 1-2 weeks and start the warming up again.

Aug 04, 2010 | Microwave Ovens

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