Cleaning the drains periodically is an easy project that can make a big difference in the efficiency of your refrigerator. Clear any clogs with a piece of flexible wire coat hanger. Using hot water, flush the area with a turkey baster. Pour a small amount of bleach down the hole to kill any mold, then reflush.
Before tearing off a slightly damaged door gasket, try this easy repair. Open the door and tape a sheet of wax paper to the area where the gasket would meet the refrigerator if the door was closed. Close the door and draw a bead of silicone caulk over the damaged area of the gasket. With a wet cloth or paper towel, wipe off the excess caulk, cure the patch overnight and carefully remove the wax paper.
Install a New Gasket
If the gasket is too damaged, installing a new one can be done competently by even a novice do-it-yourselfer. Loosen the screws in the metal retainer under the gasket until the lip of the gasket can be removed without tearing. Slowly pull the lip from under the retainer until the gasket is removed. Starting with the top of the door, press the new gasket under the rim of the retainer and work it in along the perimeter of the door. Smooth out the gasket, then tighten the middle screws on each side. Tighten the remainder of the screws to hold the gasket in place.
Exterior chips and scratches may not affect the efficiency of the refrigerator, but they can make a kitchen appear rundown. Repairs can be made with an epoxy kit available at home improvement or appliance stores. Clean the chipped area with soapy water, dry it, then sand it with medium sandpaper. Mix a 50/50 solution of the hardener and color in the repair kit and brush it on.
Use automobile rubbing compound to get rid of light rust on the exterior of the refrigerator. It will rub away the stain without ruining the paint.
To reduce the chance of compressor failure, unplug your refrigerator, move it away from the wall and vacuum the coils. Some refrigerators have a small grill in the front that can be snapped out and cleaned.