At Robbins Heating & Air Conditioning, we often get calls from concerned homeowners asking why their air conditioner is freezing up, especially on the hottest days of summer. While it might seem strange, freezing is actually a common issue with AC systems, and it often starts with understanding one key question: What temperature does AC freeze in Monument? When your air conditioner freezes, it can stop working altogether and even suffer long-term damage if not addressed promptly. Knowing the warning signs and causes of freezing can help you take action before the issue becomes a costly repair.