We always recommend contacting a professional, but especially if you experience any of the following: The system won’t turn on at all

• Burning smells, electrical odors, or visible sparks
• Ice forming on the indoor or outdoor unit
• Loud grinding, buzzing, or banging noises
• Water leaking around the air handler or furnace
• Rising energy bills with no clear reason
• Weak airflow or uneven temperatures throughout the home