After defrosting the freezer it will not cool

If the sides are hot, look at the defrost timer. Sounds like it has stopped running with the defrost elements on. The compressor has a safety switch on it that opens either if the compressor gets too hot or if it pulls too much current when starting. If your power flickered a lot before coming back on, that triggered the safety switch. Now that it's running normally, I wouldn't worry. The defrost timer is your problem now.

Hello;

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

You are locked into the defrost mode. This is where every 8-10 hours your unit will completely shut down except for the lights. At this time your defrost heater turns on for 20-30 minutes to defrost the evaporator (Cooling) coils in your freezer.


You can manually turn your unit back on, until you get a new defrost timer. If you have a up right freezer your defrost timer is in the lower back. It is mounted on a metal plate.

With a flat head screw driver turn the stem slowly one click at a time until your unit turns on. Once a day repeat this process to put your unit back into defrost until the timer is replaced.




If you have a top freezer the defrost timer is located on the top of the fresh food section on the left. Do the same thing. The cost of the timer is about $30.00.

Send me your model number located on the side front wall of your fresh food section and I will proved you with the part number and walk you through the repair.

you machine has an electronic control instead of the old timers where you can manually advance the timer and out it in defrost. The part number 297282800 for it.
The first thing you want to do is open the freezer and see if the fan inside there is running. The reason is the freezer cools the refrigerator side by circulating air from the freezer. If the fan is running then your problem is one or more parts of the defrost system is malfunctioned and in return your problem arises. There are three parts to the system, the defrost timer or in some cases control board, defrost thermostat also known as a bi-metal, and the defrost heater. The defrost system is set up to operate as so. The defrost timer or control board will turn the machine off, in some cases every 8 hours, some 12. During this time period the defrost heaters, located behind the freezer wall and rest underneath the evaporator, yet wires to them run up the side of it, are energized and emit heat that raises upward to melt the ice that has formed on the evaporator coils. The bi-metal or defrost thermostat is at the top of the evaporator. When the heat from the heater starts to reach the bi-metal, it breaks the circuit turning the heater off. The whole purpose of this is because the freezer cool the refridgerator side by drawing air across the coils and blowing to the other side via the evap fan motor. In my opinion, if you change one part of the defrost system change them all because usually when one part fails another will follow, so save yourself the time and the food loss, the cost difference is minute.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

Hi,

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heatman101

Do you see frost built up on back wall of freezer if so it is not defrosting and this is what needs to be checked, remove back wall of freezer and check these;
Defrost heater-- it usually is at bottom of the evap. coil, to check it remove wires to it ,use a meter set to the lowest ohms setting and check for somewhere between 10-50 ohms if that is what yours is its good if meter reads OL replace defrost heater

Defrost thermostat-- if clips to the top of the evap. coil and is metallic,round , about the diameter of a quarter with a plastic side with 2 wires coming from it(do not confuse it w.thermister),remove wires and check for ZERO ohms WHEN TESTING IT MUST BE COLD so check it when frost is built up,IF meter reading is OL (WHEN COLD) its the problem

Defrost timer or defrost control if has digital display to show tempature
check timer(it could be anywhere except in freezer) by turning till you hear a click,the defrost heater should come on within 5 minutes if the heater does come on the timer is the problem and needs to be replaced,if the heater does not come on the above mentions parts (heater/t-stat) will be the problem.
defrost control is hard for unskilled lay persons to check SO IF heater and defrost t-stat are good replace control

Hope this helps,

Gene

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

Clean cooling coils....throughly. Check door seals.

is the compressor running ? if yes feel the cooper tubes around , the tiniest one is suppost to be hot if is not hot u have a leak call a tech . if it is hot open the freezer and take the back cover inside of the freezer if the coil is totaly covered with ice you have a defrost problem , check the timer , bimetal and heater

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

if there is air getting into the freezer because the door is not sealing properly the unit will run because it is sensing it is not cold enough inside. your unit releses the heat from the refrigerant through copper tubing that runs through the cabinet, and thats why it is hot. you need to level the unit make sure the door is sealing on the top bottom and both sides ansd then the freezer will work properly and be able to shut off after it has come down to the proper temp.