Not necessarily. In many cases, warm air is caused by a lack of refrigerant in the system. The refrigerant may leak if your vehicle isn’t run very often or when there is a problem in the system with a hose or service port. A basic evacuation and car AC recharge may be all that’s necessary to get your system back to operating as it should. To have our technicians perform a thorough AC inspection, stop by any Lamb’s Tire & Automotive location and check out our coupons page for savings on our services.