Freezer developing frost while the fridge is warm

To me This is on all Makes and models build up of frost means warmer humid air is entering into colder air this will cause a frost build up from entrance of warm air coming in so your looking at your air flow in all compartments of your ref,freezer so on.
blocked air will give false readings to sensors when compartment is asking for lower temp colder temp will be noticed.
bad or obstructed door seals door not closing properly
Follow your frost line it will point the way.

Is the fan working, If it does could be a roblem with defrost cycle or the defrost heater faulty, causing ice buildup.

What happens in that 72 hours is the evaporator coil get's so much frost built up on it that the fan in the evap. freezer fan has no where to circulate the cold air (where the cold is produced). Basically you have a restriction between freez/fridg. sections you have defrost problem> It is one of three things d heater,d t stat, or your d timer.I need the model # to tell you what my sugestions would be and where to start.

One of the most common problems with freezers is their tendency to build up a thick level of frost and ice that can disrupt performance. The ice can form on the hoses and cause the fan to freeze up. While you want the freezer to be cold, too much ice is not good for the freezer or the food inside it. There are multiple reasons a freezer could start to develop frost buildup.

Freezer Overstocked
Frost can build up in the freezer if there are too many items inside of it. Air cannot properly circulate around the freezer, so the areas with the sitting cold air can freeze the moisture. Frost continues to build up and accumulate, which then allows it to spread. If food is stocked up near the fan, cold air can't get past it, and the fan itself could develop frost to the point where it freezes and stops working entirely. This can be prevented by not overstocking the freezer and by evenly distributing food throughout.

Temperature Setting Too Low
The freezer should have a thermostat that regulates how cold it gets. If the temperature is set at too low of a setting, the freezer kicks into high gear, the air freezes outright and frost quickly builds up. Adjusting the thermostat to a higher temperature or level can counteract this problem, but you may need to de-thaw the freezer to eliminate the frost that has already built up inside.

Keeping the Fridge Door Open
Many people keep their fridge door open for extended periods of time while they examine the contents inside to see what they want to eat. This can contribute to frost buildup in the freezer, because the fridge is taking in a lot of warm air during this process and the fan pushes it up into the freezer. The moisture in that air is then quickly frozen, and ice can build up substantially as a result. The longer the fridge door is held open, the more likely this can occur, so the best solution is to only keep the fridge open for short intervals and then to not open the door again for a while.
Hope this tips will help you. : )

Hi,

Check out these tips...they can help you figure out what is going wrong with your refrigerator and why it is not cooling

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heatman101

change the timer

change thermostat sensors in fridge and freezer easy
???

If the defrost heating element, defrost timer or evaporater fan weren't working, you'd develop a block of ice on the evaporator. Is the compressor running? If it is, it might have bad valves from the frost buildup scenario. Liquid refrigerant could have gotten to the suction valves. The sealed system should have a five year warranty. Might be time to call a pro

Make sure the the evaporator fan is running and circulation is getting to the fridge side. Remove anything that could be blocking the vent that brings in the air from the freezer to the fridge. Make sure that no frost is building up in the back of the freezer. If there is frost, then the timer can be going bad.

Hello Mr Barnard

Welcome to fixya

You said, You have a zanussi fridge freezer combination, it is a frost free model, And you're developing lots of frost in the freezer which never used to happen and the fridge is not getting cold, some condensation does appear inside the fridge, it is 2years old.

Frost could mean a few things.
Is the freezer cold but the fridge not?
If so the freezer may be so full that the articles are covering the air vents in the back that share the cold air with the fridge.
I've have seen the freezers packed to the hilt!

More things to check.
Is the condenser in the back or under the front of the fridge. If it is under the front of the fridge you must remove the plastic grill`(The condenser is the thin black metal tubing that runs back and forth to make up your condenser). This needs to be free of dust and have air passing over and through it!
they sell refrigerator brushes for this at the hardware store.
I have had customers that never ran the brush under there ever and had 1 to 2 inches of dust and lint
under there between the tubes.After a few hours it was cool the next day it was cold!

The freon level pressure should be checked in case you have a leak.
The thermostat may be bad.

Let me know what works for you.
Huuum
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