My fridge is warm, the freezer is cold. Maytag MFF2557KES, double doors, bottom freezer, about 12 years old.

If the freezer is cold make sure it is not to full the air needs to circulate. If that's not it check that there is not inside the vent from freezer to fridge sometimes they get clogged with stuff (corn peas etc.) Hope this helps

Modern consumer refrigerators only have coils in the freezer. In the lower back of the freezer there is a small fan and possible a damper (flap that opens/closes) to push cold air from the freezer to the refrigerator. Given that the freezer is 18 deg, it's probably cold enough to keep the fridge area at typically 34 deg.
So the cooling system (compressor, coils, thermostat) are not working properly to keep the freezer at, typically 0 deg. Possible causes: partial loss of refrigerant gas, icing around evaporator coils (in freezer), compressor failing, dust clogging condenser coils (under fridge), condenser fan clogged or broken (under fridge), thermostat failure.
I'd start with condenser. Remove the slotted trim at the bottom front and look in with a flashlight. Are the coils clean? Pull out the fridge and remove the lower back cover (usually cardboard). You can now see the coils and fan. Clean and blow them out.
If it's icing, it probably means freezer door not closing tight. If auto-defrost not working properly it would probably get worse over the period of a few days so not likely.

A likely cause is loss of refrigerant. The compressor will run, but no heat exchange will occur. This requires professional repair, and they have to find the leak, otherwise the problem will recur.
Another cause could be wrong setting of the refrigerator thermostat. Probably less likely, unless someone fiddled with it.
Another cause could be a build up of dust on the heat exchange coils. A refrigerator is a heat pump that removes heat from inside the refrigerator, and radiates it via the coils - usually behind or under the refrigerator. But you'd have to have an awful lot of dust insulating these coils for the refrigerator not to work at all.

• Check the thermostat control. Even if you've not touched it, something may have knocked it and adjusted the setting. The thermostat may also need to be adjusted depending on the temperature of its surroundings and the coldness of the weather.
• Make sure any food stored in the fridge or freezer is not blocking any air vents. This can stop air circulating properly.
• If the fridge is too close to the wall, the condenser coils will not function properly.
• Defrost the fridge and freezer thoroughly and clean the inside surfaces with warm water. Check any air vents to ensure they are not blocked.
• Clean the condenser coils at the back of the fridge using a vacuum cleaner, making sure all dust and any dirt are removed. Clean any stubborn dirt away with warm soapy water, being careful not to scrape the coils. Turn your fridge off and unplug it before doing this.
• Make sure the fridge's fans are not clogged and are able to function properly. Again, you need to turn your fridge off and uplug it before attempting this.
• Check the door is closing properly. Make sure nothing is obstructing it or pushing it slightly open. Ensure the seals around the edge are working well.

• Check the thermostat control. Even if you've not touched it, something may have knocked it and adjusted the setting. The thermostat may also need to be adjusted depending on the temperature of its surroundings and the coldness of the weather.
• Make sure any food stored in the fridge or freezer is not blocking any air vents. This can stop air circulating properly.
• If the fridge is too close to the wall, the condenser coils will not function properly.
• Defrost the fridge and freezer thoroughly and clean the inside surfaces with warm water. Check any air vents to ensure they are not blocked.
• Clean the condenser coils at the back of the fridge using a vacuum cleaner, making sure all dust and any dirt are removed. Clean any stubborn dirt away with warm soapy water, being careful not to scrape the coils. Turn your fridge off and unplug it before doing this.
• Make sure the fridge's fans are not clogged and are able to function properly. Again, you need to turn your fridge off and uplug it before attempting this.
• Check the door is closing properly. Make sure nothing is obstructing it or pushing it slightly open. Ensure the seals around the edge are working well.

Fridge gets cold air from freezer to cool it. Your freezer is fine but not enough cold air is getting into fridge compartment. U have some dampers or louvers that direct air flow to fridge and if they are not set properly cooling will not be adequate. Check those out.

Check the fridge's temperature or thermostat control to confirm that it was not accidentally turned up.
Inspect the appliance's door seals to ensure that they are not cracked or have come loose.
lean the fridge's condenser coils. Condenser coils displace hot air from the refrigerator by drawing heat away from the appliance with a fan. Vacuum the condenser coils to remove any dust and dirt accumulated on them, then use warm, soapy water and a clean cloth to clean the condenser coils of any remaining debris. Examine the drain line, located under the refrigerator, if above does not fix it , it may be low on freon, or there is a hole in a line.

Hello,
Most times this is a bad cold control, but there are other things to check for. Make sure the condenser fan is working and the coils are not covered with dust. A separated heat exchanger ( small capillary tubing soldered to the large suction line ) can separate from one another and make the fridge run too long. - tape tubing back together. A poor working evaporator fan motor could also make the fridge run too long and freeze - replace the fan motor. An inefficient compressor or refrigeration system could make the fridge run too long and freeze - have a service tech check this out. A misaligned control settings, make sure the air damper and cold control have not been bumped and are out of normal settings. Stuck open air diffusers or air dampers are becoming more and more common for allowing too much air to be blown into the fresh food section and freezing things. On all frost free fridge's the freezer temp air is blown into the fresh food section, if you have "easy" to freeze items ( eggs, veggies in water, etc ) in front of or under where the freezer temp air comes out, they could freeze - store them in a different spot. Doors not closing properly making the fridge run too long is something else to check for.
I hope this will help to solve the problem....

5 reasons for fridge and/or freezer getting warm: 1- the evaporator coils are icing up and won?t let air circulate. 2- the evaporator fan is not working to circulate air. 3- there is no refrigerant in the system. 4- no power to fridge or compressor. 5- the condenser coils have no air circulation check under the fridge behind the vent. if it is too dusty or the fan isn?t working, it is not getting enough airflow to cool down. replace fan and/or vacuum out the dust. if there is no power to the fridge, the light will be off. if the compressor is not running, there is a defrost timer that cuts the power temporarily to the compressor to melt ice on the coils. it?s located under the fridge behind the bottom vent. If the timer is off and the compressor is not going, the compressor or the main board is bad and needs replacing. there is also a temperature sensor on the evaporator coils that tells the defrost coil to turn on and when to turn off. if the defrost timer is on but the coil is not heating up, replace the sensor. if it still won?t heat up, it?s the timer or the coil. the easiest way to tell if there is no refrigerant- the freezer wall is warm and the compressor is loud. if there is no refrigerant, it may be more cost effective to replace the fridge. if you feel no air coming from the freezer vent, the fan needs replacing. If you feel air moving in the freezer but not the fridge, the channel from freezer to fridge is blocked. if the freezer has air and the rear freezer wall has frost on it, the evaporator coils are iced up and need defrosting. causes: 1. low refrigerant 2. no fan 3. too much humid air in fridge/freezer due to door open or bad door seals 4. the condensate drain tube is clogged if the seal around the door is ripped or not completely sealing, or there is condensation at the bottom or the walls of the fridge, replace the seal(s). no air, no fan. Replace if the refrigerant is low, it just needs a top off. but you need to be certified by the epa to move refrigerant, so get a professional. defrost solutions: unplug the fridge. remove the wall of the freezer that is frosted/icing up. use a hair dryer to melt the ice. do not get too close. you will see a drain under the evaporator coil. make sure it is not blocked. the water should run freely to a condensate pan under the fridge that evaporates the condensation with the hot line from the compressor. once the coil is free of ice, frost, and water, replace the panel and repair any of the problems that caused the icing up. plug the fridge in and turn it on. If it frosts up within a week, there is still an issue that not been taken care of.

It could be some many things, to save time let me give you this check list:

• Check the temperature setting
• Assure that there is enough room for air flow in the refrigerator or freezer
• Check for air flow restrictions in vents
• Test the temperature control
• Clean the condensor coils
• Check the door seals
• Test the door switch
• Test defrost heater
• Test defrost timer
• Test evaporator fan
• Check for a clogged drain tube
• Check for refrigerant leak

Do what you feel qualified to do.

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