Ice is building up on back of bottom shelf-auto defrost is not working and food is thawing out on top shelf

Obviously that freezer is not achieved the required temperature. There are several reasons for that:
- Defrosting system is not working, which leads to accumulation too much ice on the evaporator that prevents heat transfer and reduces air circulation despite the fan is running.
- The problem with draining condensate after defrosting cycle which also leads to accumulation of ice.
- Leaking gas from the cooling system (reduced cooling capacity)
- Faulty compressor

Dado

your freeze have cooling matchine problem.

Hi,

Fan problem is one of the most common reasons for the freezer to start failing, this is called "frost free failure." Ice can build up on the evaporator coils over time, and this ice builds up until it starts blocking the fan. The fan is responsible for circulating cold air throughout the freezer, so if it is blocked the freezer will not be able to freeze any food. You can usually check this by removing an access panel in the back of the freezer to inspect the coils. If ice is built up on the coils, a hairdryer can assist in defrosting them.

It's also possible that the fan is not running at all. If the fan is burned out or the motor isn't running, cold air can't circulate through the freezer and everything will melt. You can normally hear the fan motor switch on and off from time to time. Listen for it and if you can't hear it coming on for an extended period of time, the motor may need repair or replacement. The wires connecting to the fan may be the problem, preventing the fan from receiving electricity.

Several other problems could be keeping your freezer from freezing:

There could be leaks in one or several of the hoses in the refrigerator, which results in the cold air being lost instead of circulating properly throughout the fridge and freezer.

If you have the freezer so full that the cold air can't circulate, your food will thaw even though the freezer isn't malfunctioning. Always leave some space open in the freezer and try to not store food right up against the cooling vents.

The thermostat might have shorted out, which means the freezer can't accurately determine how cold it is. If this is the case, the refrigerator would probably not be working, either.

If your defrost drain becomes clogged, the water in the line will just refreeze over and over again, which could damage the lines as well as the fan. Always check the drain and make sure no sludge is building up in it if you have a self-defrosting refrigerator.

Always try to keep the freezer door closed for long periods of time. The more the door is opened, the more warm air is let in and cold air is released. If the door is opened frequently, the freezer could be warming faster than the fridge can cool it, which will thaw your food.

I hope this helps........

Good luck.

freezer may be iced up,defrost it and try again

Check for ice on back wall if iced up check defrost heater and defrost timer also check and besure evaperator fan is working check wireharness on heater, timer, and evap. fan motor.Sounds like you have a defrost prob. Turn off for 24hrs to melt ice turn unit back on if it works for a few days then ices back up you have a defrost prob.

It sounds like it is not defrosting. Could be the heater, terminator, or the defrost timer. There is still ice built up behind the wall and won't take long for it to stop working again.

Hi, Put a thermometer in the freezer and see if it gets down to 0 to 5 above zero. If it is not getting that cold, something is wrong. If you had frost building up behind the rear panel, there is a defrost problem.
Please let me know the temperature and I can assist you further.

Vic

Hi, Are you seeing ice or frost? Is frost building up on the freezer back wall? I can help you, just need to be clear.
Thanks
Vic

There is probably an ice build up behind the plastic rear panel. The ice build up gets so thick that eventually, it obstructs the fan and then you get that loud noise as the tips of the fan are chipping away at the ice.
What you need to do is to remove the rear panel and thaw the ice build up. To remove the rear panel is usually only 2 screws at the bottom.....you will find that the panel is difficult to remove due to ice build up behind it, so gentle heat from a hairdryer is a good way to accelerate the thawing process....once the panel is removed, you will see the ice build up......mine was about 2 inches thick!!!
I used the hairdryer to thaw it all out and then once cleared, switched it back on and have never had a problem since.
By the way, my F?F is a Beko CDA563FS......the one with the water dispenser on the front and frost free.
Hope this helps

The model number would help but it sounds like a sealed system leak or restriction. If thats the case I would not suggest trying this yourself. The water should freeze overnight and the frost should keep going to all the shelfs that have coils in them.