Fridge freezer stoping after 24 hrs

The compressor has a start device that could be the problem. If you remove it it should not rattle if it does it is very likely the problem. If it doesn't rattle then it could be your compressor. Check the start device first. it is located directly on the side of the compressor. and is easy to remove and install anoter.

If you have laid it down when you moved it you need to have it in the upright position for 24 hrs. before plugging it in. (so unplug it. let it sit for 24 hrs. then plug it in.)

Your fan unit is blocked, draws freezer air from freezer, may be defrost element or defrost timer, needs service machanic, sorry. Russ

DEFROST PROBLEM The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.
If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.
If the defrost thermostat is bad, it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad. With an ohm meter it should show continuity when cold and none when warm. You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.
The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.
If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.
If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

Hello there:
first make sure that the back of the unit is clear of any dirt or obstructions
also make sure that the food is not stacked up so high that the air cannot circulate also you may want to check the temperature setting if the unit does not respond to a lower setting your refrigerant level may be low or than you will have to have the temperature controle thermistor serviced or replaced

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.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

Normal 0 I had a frezer with the same problem. It's probably either your defrost timer or the defrost heating element. If you're handy, you can troubleshoot the problem yourself by following the suggestions found here. It's not a complicated fix, but if you are uncomfortable taking your refrigerator apart, then contacting a qualified repair person may be your best bet. Hope this information helps!

It might be the timer motor, if it doesn't run. neither does the timer. Easily replaceable and cheap. good luck. John

If not defrost, could be timer, or heater is not working for some reason. Bad time can cause lots. Compressor could run during defrost, heaters not working, and such. Doubt that the t'stat would be the fix. Could be having a defrost cycle that is too short. Repairing all 3 plus the cost of a tech could get very pricey.

almost certainly a problem with the defrost timer - just replace complete. doesn't matter what position you set timer to when replaced