Car Heat or A/C Not Working? Here’s What Could Be Going On
You get into your car on a chilly winter morning or a hot summer afternoon and suddenly realize the heating or A/C system isn’t working. Whether you’re freezing or sweating, a malfunctioning climate control system can make any drive uncomfortable and even unsafe. But before you panic, it helps you to understand how your car’s heating and cooling systems work—and what could go wrong.
Though they share components and are often diagnosed together, the heating and A/C systems function separately. That’s why regular inspections and preventative maintenance are essential for year-round comfort. Here’s how each system works, what issues to watch for, and when it’s time to schedule an inspection with a trusted auto repair shop like George’s Wholesale Tire & Auto.
How Your Car’s Heating System Works
Your car’s heating system uses the engine’s heat to warm the cabin, relying on key components like the heater core, blower motor and fan, heater hoses, HVAC control panel, heater control valve, and cabin air filter. When the heating system fails, you may experience no heat, inconsistent temperatures, or foggy windows that won’t clear. Common causes include low coolant, air pockets in the cooling system, a clogged or damaged heater core, and a faulty thermostat. These issues not only reduce cabin comfort but can also indicate potential engine problems. If you notice weak airflow or cool air when your heat is on, it’s important to have your vehicle inspected promptly.
Common Car A/C Problems
During hot, humid weather, your air conditioning is your best friend—until it stops working. Your A/C system has a complex setup that includes refrigerant, a compressor, a condenser, an expansion valve, an evaporator, and various hoses and valves.
When one component fails, the whole system can underperform or shut down.
Some of the most common A/C issues include:
- Low refrigerant (often causes cool, but not cold air)
- Clogged or leaking condenser
- Cross-contaminated refrigerant
- Compressor failure
- Broken serpentine belt or clutch
- Unresponsive pressure switches
- Moisture or debris in the system
- Leaks in hoses or seals
- Faulty A/C control panel
Even minor A/C issues can lead to bigger problems if ignored. Strange smells, weak airflow, or unusual noises when the A/C runs are all red flags.
Schedule Seasonal Inspections for Year-Round Comfort
Whether it’s your heater or A/C, catching climate control issues early is key. At George’s Wholesale Tire & Auto, our certified technicians will inspect your heating and cooling systems, diagnose any problems, and provide recommendations—helping you avoid costly repairs down the road.
Schedule an appointment today at our Port Richey or New Port Richey, FL, locations. Our experienced technicians will make sure your heating and cooling systems are in top condition, so you can drive in comfort all year long.
