Your car’s heating and cooling systems are connected but operate differently. It is important, therefore, to maintain your AC and heating units to ensure they work properly. Proper maintenance guarantees efficiency and comfort in the long run. Unfortunately, your car’s heating and cooling system have too many components that it is sometimes impossible to pinpoint the malfunctioning component.

You need to schedule a diagnostic appointment with the right auto mechanic shop to handle this. They will identify the problem and recommend the right fix for it. So even before you begin experiencing problems with your car’s cooling and heating system, be sure to book an appointment.

Why your Car Heating System May be Failing

It is necessary to have the car’s heating system working correctly to help keep you comfortable inside the vehicle when the temperatures outside are unfavorable. This system consists of :

  • Heater core
  • Blower motor and fan
  • Heater hoses,
  • Heater control valve
  • HVAC (heater, ventilation, air conditioning) control panel on your dashboard
  •  Cabin air filter.

The car’s heating system utilizes heat from the engine. Whenever it fails to work, it is because of one of the following concerns:

  • A Low coolant
  • Air in the coolant system
  • Malfunctioning heater core
  • Failed (or failing) thermostat

Common Causes of Car AC Failure

The car AC is important as it keeps you cool during humid weather. The system consists of :

  • Refrigerant
  • Compressor
  • Condenser
  • Receiver drier
  • Expansion valve
  • Evaporator
  • Lines
  • Accumulator

In most cases, it breaks down because of the following reasons.

• Low refrigerant (will generally blow cool, but not cold)

• Refrigerant cross-contamination

• Clogged or leaking condenser

• Unresponsive pressure switches

• Broken belt

• Damaged compressor

• Clutch issues


• Moisture and debris

• A/C control head malfunctions

• Worn or stretched serpentine belt (required to operate the compressor and clutch)

Contact the right car mechanic to help you fix your car’s heating and cooling problems. If you are in Fort Worth, TX, consider checking out Tire Zone for this and other services related to your vehicle. They will help you achieve the level of comfort you desire for your vehicle.