Freezer frosting up all the time

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.

"Frost free" fridges automatically cycle in and out of defrost mode a couple (or more) times a day. There is no user intervention required. If your frost free fridge is building up frost, there's a good chance that the defrost circuit has developed a problem.

before digging into the defrost circuit: If frost is building up only on a door or door opening - this is an indication of a poor freezer door seal. Once the seal is repaired or replaced, the frost should stop building up. If the frost is throughout the inside the freezer - and the temperature of the fresh food compartment and eventually the freezer is climbing - then it's more involved than a door seal.

Typical problems areas of the defrost circuit are: the defrost terminator or sensor, defrost timer assembly and defrost heating element. While the circulating fan(s) is not part of the defrost circuit - it is usually visible and should be checked when inspecting defrost heaters and terminator components in the freezer. If the fan(s) has failed or is otherwise unable to spin, it should be replaced.

If you need more help, please provide the brand and model fridge you have. Good luck!

Could be that it is not getting a good seal when the door is shut. Check for obstructions causing that and check the door seal to see if it needs to be replaced.

Hello,

This is the step you will use to repair your ice door seal that is loose.

There are screws under the fold of the freezer door gasket that holds the brace for the gasket in place. Lift the rubber gasket to expose the screw head, one section at a time. Just loosen the screw, and do not take it completely out.

As you loosen the screws, one section at a time, carefully remove the old gasket. At the same time, fit the new gasket into the groove. Make sure your new gasket is lined up properly.

Continue around the freezer door, unloosening the screw, taking out the old gasket and fitting the new one in.

Tighten the screws into place. This may have to be done once the entire gasket is fitted into place.

Check the seal by closing the door. You should have a nice, tight seal.

Good luck.

Step 4 Tighten the screws into place. This may have to be done once the entire gasket is fitted into place.

Read more: How to Fix a Freezer Door Seal | eHow.co.uk http://www.ehow.co.uk/how_4855248_fix-freezer-door-seal.html#ixzz0rY7rn3O8

Step 3 Continue around the freezer door, unloosening the screw, taking out the old gasket and fitting the new one in.

Step 4 Tighten the screws into place. This may have to be done once the entire gasket is fitted into place.

Read more: How to Fix a Freezer Door Seal | eHow.co.uk http://www.ehow.co.uk/how_4855248_fix-freezer-door-seal.html#ixzz0rY7gYaZ2

Step 2 As you loosen the screws, one section at a time, carefully remove the old gasket. At the same time, fit the new gasket into the groove. Make sure your new gasket is lined up properly.

Step 3 Continue around the freezer door, unloosening the screw, taking out the old gasket and fitting the new one in.

Step 4 Tighten the screws into place. This may have to be done once the entire gasket is fitted into place.

Step 5 jQuery(document).ready(function(){ jQuery('#jsArticleStep5 span.image a:first').attr('href','http://i.ehow.com/images/a04/k5/eg/fix-freezer-door-seal-1.5-800X800.jpg'); }); Keep the gasket clean to last longer. Check the seal by closing the door. You should have a nice, tight seal.

Read more: How to Fix a Freezer Door Seal | eHow.co.uk http://www.ehow.co.uk/how_4855248_fix-freezer-door-seal.html#ixzz0rY7JfY8i

check your seals on the door and see if any on the compartments are broken because if the door is broken to the compartment it could be that the the cold and warmth is mixing causing your freezer to frost up temp could also be to high check all

hope this help

Check seals around door....you need to reduce the amount of moisture entering the freezer compartment.
The frost will build up on anything in there.

too defrost just open the doors for a day with the unit unplugged. as far as why it is frosting up check door seals make sure they are all good and seal it up well and that should take care of it.

The gasket is not sealing correctly and is allowing warm air to meet cold air just below the seal.

Get someone with more skill to fit a new gasket , preferably one made by the original manufacturer , which should fit unlike some of the parts made by third party suppliers

Almost certainly, you have a leak within the freezer compartment.

The cooling system will use a divertor valve to concentrate coolant to the fridge or freezer compartment - whichever is necessary to maintain selected temperatures.

If a seal within either compartment is compromised and leaks then the coolant will be excessively diverted to that area in an attempt to lower it's temperature - the other section will suffer since more coolant is diverted to the weaker area; the weaker area that is being excessively cooled will also have more moist air circulating, hence moisture will contribute to a build up of ice - exacerbating the problem.

Ensure that both fridge and freezer doors are closing properly, if they appear to be secure then also check that the seals are airtight - there should be no ice accumulating around them.

You might need to re-align the doors, or less likely, replace the door seals.

Please reply if you require further clarification or help.

Freezer door frames have a small heating element in them to stop that happening. Your element is failed.

Torn gasket seals just cause frost inside, but also cause the compressor extra stress if the seal is bad. This causes the compressor to keep running as yours does. They are cheap to buy and easy to fit.

With a 12 year old one, it is probably time for a new one. The new ones are more energy efficient and are cheaper to run.