Your system turns on. The indoor fan runs. Air blows from the vents. But it’s not cold. The air feels room temperature or only slightly cool. Something’s clearly wrong. When the fan runs but you’re not getting cold air, it typically indicates compressor failure, refrigerant problems, or complete system breakdown. These are major issues that often warrant replacement rather than expensive repairs on older systems.

Summer electric bills are twice what they were three years ago. You haven’t changed your cooling habits or added new appliances. The AC is the obvious culprit consuming excessive power. Dramatic energy increases indicate serious efficiency loss. Your system works overtime to deliver inadequate cooling. Modern high-efficiency systems can cut your cooling costs in half compared to old, failing units.

Burning odors. Musty smells. Chemical scents that weren’t there before. Your nose tells you something isn’t right with your AC. Odors indicate electrical problems, mold growth, or refrigerant issues. These aren’t just unpleasant; they signal problems that can worsen and potentially create health concerns. Persistent smell problems in aging systems typically warrant replacement.

Years of exposure have taken their toll. The condenser shows extensive rust. Components are visibly deteriorated. The unit looks ready to fail completely. Severe corrosion indicates internal problems are likely worse than visible exterior damage. Corroded components fail unpredictably. Replacement provides reliability that a corroded system simply can’t offer.