Symptoms of a malfunctioning HVAC System
- Improper vent air temperature
- Low or no vent air flow
- Smell or fogging of windshield during defroster operation
- Growling/grinding or squealing noise during A/C or heater operation
- Overheating
Your air conditioning system is part of your HVAC (heating, ventilation, and air conditioning) system, and one of the key components in your vehicle’s comfort-control center. When your air conditioning is not functioning properly, driving can be miserable and, in some cases, even dangerous. All modern cars have a heater, and most have an air conditioner. These components help maintain safe and comfortable driving conditions, including visibility.
The HVAC System provides proper in vehicle climate conditions. It de-humidifies the vehicle interior (and helps to clear fogged windshields). You must seal and contain refrigerant, lubricant, and coolant.