Bottom freezer not working

check yor damper door, it's the little door at the top and or bottom of the fridge insid near the top and or at the bottom behind the crisper drawer when working right they open to let cold air in from the freezer and warm air out. top one cold in, bottom one warm air out.they work on a sensor/relay when the freezer fan goes on they open when cold air is needed.

either the evaporator coil is iced up which means the defrost heater is bad,the defrost control is bad or the damper vent door which throttles cold air in isn't opening fully from the freezer to refrige,the evaporator fan isn't running or if electronically operated the main board behind the unit can be bad on these as this board controls all electrical issues

check your damper vent door located between the fridge and freezer and make sure its opening up to let cold air into the fridge,also check the evaporator fan motor and make sure its operating to blow the air around the inside of the unit

two options...one drain hole blocked in freezer,clean with copper wire/bleach to clear gunge.
two outside temp too cold i.e. unit in garage/outhouse( too cold for compressor )
also check seal to doors.air leaks...

I had this problem. The Evaporator fan in the freezer was working but no air would be circulated from the freezer into the refridgerator. To test this you open the door of the freezer, and depress the door button(s) of the upper refridgerator doors so that the light extinqueshes in the refridgerator. This will engage the evaporator fan in the freezer. You can check to see if air is venting from the freezer into the refridgerator by feeling the holes at the top most part of the multi-air flow channel in the refridgerator. If air is comming out when the freezer door is open, close the freezer door and feel if air has stopped. If you have kept the upper door buttons pushed in on the refridgerator and now have the freezer door closed, you should still hear the fan running, but may have not air flow with the freezer door closed. The cause of this is the air return channel from the refridgerator to the freezer is either frozen or clogged. My return-air channel was not frozen but clogged by a residue from something that spilled inside of the bottom of the refridgerator. The return-air channel has two vents in the rear-bottom of the refridgerator that exit into the freezer behind the evaporator (cooling coils). You can't see it even if the back interior panel is removed from the freezer compartment.

The bottom line here is that if air is prevented from moving from the refridgerator, back down to the freezer, then your refridgerator will not cool, but your freezer will work just fine. You will not need to replace the fan, unless the fan is not functioning. You may need to check the dampener, to ensure that your multi-air flow channel is open - (allowing air to come into the refridgerator). The multi-air flow channel is easy to remove once all of the shelves are removed from your refridgerator. Only 2 screws holding it in (securing the center rack top and bottom). The top screw is located behind a small plastic cover that can be removed.

That's what worked for me.

make sure the fan in the freezer is working...also check to see if frost is stoping the air flow... you may manual defrost.. by turning it off and keeping the doors open untill all the ice is melted... hope it helps

Are the temps in the fridge and freerzer as cold as they should be? The air circulates through the unit and the moisture is taken out in the freezer by the evaporator coils. If they are not cold enough the moisture won't be taken out. The freezer fan has to run to do this and the damper (vent) between the freezer and fridge has to be open. A door not closing good and leaky door gaskets will cause excess moisture.

You have a bad fan motor remove the ice maker and the back panel of the freezer and you will see the fan blower. changed and will work like new again :)

Most of these have a fan that blows the cold air for the freezer into the refrigiator section. If the fan quits running you will experience your problem.

Does freezer back wall have ice build up ? if so a defective heater is the most likely problem