10/30/2026
Most HVAC systems give a few warning signs before small problems become a comfort issue. Weak airflow, rattling or grinding noises, and rooms that won’t hold a steady temperature are some of the most common. Unusual odors and a system that keeps cycling on and off also deserve attention.
When you notice any of these signs, note when the problem happens and check whether your filter is overdue for a change. When a fresh filter doesn’t fix it, our technicians can track down the cause and walk you through your options before any work begins.
Call Sub Zero Air Conditioning & Heating at (830) 663-9953 for an honest assessment.
