A refrigerator gasket keeps chilled air inside and helps the compressor avoid unnecessary work. When the seal is split, flattened, or pulling away from the door, warm air and condensation can appear around the cabinet. A careful inspection and exact replacement can restore the seal without damaging the door liner.
Confirm the problem
Clean the gasket and cabinet contact surface, then close the door on a thin sheet of paper. If it slides out with almost no resistance at several points, inspect the gasket for tears, hardened corners, or distortion. Also check that shelves and food are not preventing the door from closing.
Remove the old gasket
Find the retaining screws or channel used by the appliance design. Loosen them gradually without removing more than necessary, and keep the door supported. Clean spilled food and frost from the groove before fitting the replacement.
Fit and warm the seal
Use the gasket specified for the model. Press it evenly into the channel, working from the corners outward. A short period at room temperature can help a folded gasket relax; never use high heat that could warp the liner or insulation.
Check the finished seal
Close the door and repeat the paper test around the perimeter. Look for a continuous contact line and listen for unusual fan or compressor cycling. If the door is sagging or the liner is cracked, the hinge or door assembly may need professional service.