Outside facing the back of the house. Outside facing the right side of the house. (reference the front door). Porch. Yard or landscaping debris has built up around the exterior Heating and Air equipment. Debris can corrode the bottoms and shorten the useful life of the equipment. The pad/s the equipment sit on or the bottom of the equipment should be clearly visible at all times. A licensed general or another qualified contractor should remove the debris and inspect the areas that were covered for damage. A licensed mechanical contractor should repair or replace.