I have frost buildup in the bottom freezer compartment. How do I correct this? Is there supposed to be lighting in the freezer compartment?

SOURCE: Frost buildup on ice/water dispenser

Is the trap door flap closing properly where the ice comes through the door? If open, warm air would be coming in frosting and maybe iceing things up

SOURCE: excessive frost buildup in bottom freezer section of Kenmore refr

There are several reasons this can be happening...

1. The seal on the door may have a tear or may not be seating properly...this allows excess warm air into the freezer compartment and in its effort to remove the same ...frost appears.

2. There is something call a thermistor that is cycled on and off as needed to remove excess frost accumulation and or ice buildup on the evaporator (freezer) coils...it is a heat strip which actually defrost the frost/ice. if this is not working frost will accumulate and eventually it will become Ice......now the remarkable thing about Ice accumulation is that you would think everything would remain cold or get colder ..however in this case the opposite occurs...it insulates the coils and thereby increasing the temperature...put a thermometer...one that is calibrated properly...(calibration can be set by placing a thermometer into a glass of ice water...the temp of a glass of ice water..after a few minutes setting will be exactly 32 degrees)..if the temperature of your refrigerator is gradually rising over the period of a week...you will need to call a tech or replace the thermistor and or trouble shoot other problems that can occur such as..

3. The evaporator fan may be going out although they usually make a high pitched whining noise of a whirring noise before they go out...not always and if they are intermittently cycling off then frost would build up...do you always here a fan running when you open the freezer...if so that is good...fan is working...but it may be cycling off at times when no one is aware.
P.S. the odds of your ice maker causing this are very, very slim...in 35 years in the industry ..I have never had an ice maker cause frost due to water spray...it will almost always result solid sheets of Ice..if it evers does cause a spray....which like I said is rare...lottery ticket type rare :-)

This should lead you in the right direction...if you need help in finding a reputable service company in your area let us know..I hope this has been helpful..if so PLEASE rate me....thank you... .......The Fang

ACME Sub Zero Refrigerator Freezer

• 41 Answers
• Posted on May 14, 2009

SOURCE: Sub zero 550 (14 years old) has a small but steady leak onto floor from freezer compartment. Small amount of frost buildup on inside of door. Food is frozen and the door "appears" to seal we

Right hand side wall in the freezer - take a look- any frozen water or moisture? Need check a drain line, usually defrost heater inside the freezer wall getting bad and draining water just freezing inside of it.

SOURCE: frost buildup inside freezer door at ice dispenser

you are still not getting a seal on that flap. It sounds as if it may be warped. THe reason the frost and ice is building up is due to the flap not sealing there isn't any other reson for your problem. Good luck on your repairs

Dave

SOURCE: Samsung refrigerator - frost on outside of freezer drawers

try checking the freezer door seal.
if slight gap anywhere around the door seal drawer fronts will frost up.
warm seal up with hair dryer and ease seal out with your hands..
problem often happens with door reversal.