10 Worst Air Conditioners to Avoid in 2025 (and 5 Most Reliable Alternatives)

6. Tempstar

Price: $2,655 — $5,185
Rating: 3/5

Tempstar units can be decent if nothing ever breaks. Unfortunately, things do break—and when they do? Good luck. Replacement parts are a nightmare to track down, and repairs can take weeks. Hope you like fans and frozen grapes.