Common Problems

In an effort to help our customers with their various HVAC concerns, we have created a page specifically for common HVAC problems. This is a resource that is intended to help individuals identify issues with their HVAC systems and other heating and air conditioning components. The trained HVAC technicians at CoolzHeating are available 24/7 to address any issues or concerns that you are having with your heating or air conditioning unit. Understanding the common problems that are associated with an HVAC system allows you to have additional knowledge about what may be needed to repair your HVAC system.

CoolzHeating is available 24/7 to address any issues you may have with your heating and air conditioning equipment. Don’t suffer in the sweltering heat or the frigid cold. Allow CoolzHeating to help you solve your HVAC concern now.

The following are some of the most common HVAC problems that we have encountered at CoolzHeating.

Air Conditioners

  • Malfunctioning of sensors
  • Wiring corroded/Electrical Issues
  • Water not draining properly
  • Refrigerant Leaking

Air Flow/Vents

  • Air not coming through vents
  • Loud sounds and/or noises from ventilation
  • Temperature variance in rooms


  • Noises coming from the furnace
  • Malfunctioning of parts such as belts, fans etc.
  • Pilot light does not come on or goes out repeatedly after being lit
  • Smell of smoke, gas or other odors/fumes coming from heater
  • Heater overheats or under heats


  • Unit runs inconsistently (not at all or too much)
  • Water drainage or leakage problems
  • Freezing of evaporator coils
  • Humidifier problems (moisture levels inconsistent-too much or too little)


  • Thermostat not functioning properly (won’t turn on or off/warning light flashing)

Request service:







Customer tools:

  • Questions to Ask Your Contractor
  • Ironclad Guarantees
  • SEER Ratings, HSPF, etc.
  • Before and After
  • Referrals
  • Heating and Cooling Zones