Subzero refrigerator/freezer, model 590. Door gaskets replaced last year, but it still ices up in top front of freezer? Any ideas?

Ice or frost in the freezer can be caused by one of Three issues:

• An improperly closed door.
• Improper ventilation of the freezer.
• The Ice Maker Flap.
1. Door Not Closed Properly

• Make sure that the freezer door closes completely.
• Make sure that the door gaskets are attached properly to the door and that they are clean. Also, make sure they are sealing properly and are not torn or split.
Take a dollar bill and close it in the door. If you can pull the dollar out with no resistance, the seals should be replaced.
• Make sure there are no packages resting against the rear wall of the freezer.

• Make sure there are no packages resting against the rear wall of the freezer.
• Space your food out as much as possible to improve ventilation.
• Make sure that the air vent in the freezer is not blocked.
Refrigerator Compartment
If your refrigerator is freezing food, the temperature is set too low. Raise the temperature a few degrees to fix the problem.
If your refrigerator temperature is too high, condensation may build up and freeze on the bottom of the refrigerator. Lower the temperature a few degrees to fix the problem.