FAQs

Off the Wall Inc Heating and Cooling
  • How often should I service my HVAC system?

    We suggest scheduling professional maintenance two times per year: in spring for your air conditioning unit and in fall for your heating system. Routine maintenance enhances efficiency, minimizes the risk of breakdowns, and prolongs the lifespan of your equipment.
  • How often should I change my air filter?

    Typically, filters need to be replaced every one to three months. The frequency depends on factors such as filter type, air quality in your home, whether you have pets, and how many people live in your household.
  • What temperature should I set my thermostat to?

    To maximize energy efficiency, we recommend setting your thermostat to approximately 78°F during summer months and around 68°F in winter when you're at home.
  • How long does an HVAC system typically last?

    With proper care and maintenance, most heating and cooling systems function effectively for 10 to 20 years. The actual lifespan varies based on frequency of use, maintenance practices, and the quality of the equipment.
  • Why is my air conditioner running but not cooling my home?

    Several issues could be responsible, including dirty filters, insufficient refrigerant, frozen coils, thermostat malfunctions, or blockage in the outdoor unit. We recommend a professional inspection to determine the specific cause.
  • Why is my furnace blowing cold air?

    Cold air from your furnace may result from incorrect thermostat settings, clogged filters, ignition malfunctions, pilot light failure, or safety features triggered by overheating.
  • How can I improve the air quality in my home?

    Installing air purification systems, whole-home humidifiers, high-efficiency filtration, UV lighting, and ensuring adequate ventilation are all effective methods to enhance indoor air quality.
  • Do you install air purifiers and humidifiers?

    Yes, we do. We provide installation services for various indoor air quality products that enhance comfort and minimize airborne pollutants.
  • Why is my home too humid or too dry?

    Improper humidity levels often stem from HVAC system efficiency, inadequate ventilation, seasonal climate shifts, or the absence of appropriate humidity control devices.
  • What areas do you serve?

    We provide service to Troy, IL, and the surrounding communities across Madison County and the Metro East region.