Determine whether anything must be removed (such as the control console) before the breaker strips can be removed. Attempt to remove the strip by pulling it away from the freezer case. If that does not work, gently slide a putty knife under the strip. Instead of prying the strip (which may damage the case or strip) slide the knife along the seam, rocking it where necessary to separate the strip. Some breaker strips are held in place with a sealant, which will have to be cut with a utility knife.
If the insulation is damp or has an unpleasant odor, leave the strip off to allow the insulation to dry. You may alternatively use a hair dryer set on low to dry the insulation.
Replace the breaker strip using a food grade sealant as necessary.