Some car repair issues are routine enough that your average driver can at least diagnose them on their own. This isn't likely to be the case with your car's heating system, which becomes an essential component when the temperatures begin to drop. If you've been running into trouble with your heater, here are a few common reasons it isn't working at full capacity.

Why Isn’t My Car’s AC Blowing Warm Air?

1. Inadequate Engine Coolant

While coolant primarily lowers your engine’s temperature, turning the heat on brings it over to the heater core as it warms up the inside of your vehicle. Without enough coolant in place, it won't be able to do its job properly. Check the ground under your car for signs of a leak. Consult your car repair specialist to check the radiator, pumps, hoses, and other potential areas for the source of the problem.

2. Busted Thermostats

Thermostat gauges indicate whether the engine is warm enough to send coolant over to the heater core. When they aren't fully functional, the air in your car won't heat up as it normally would. While common, it’s thankfully one of the less expensive car repairs.

3. Clogs in the Controls

In some cases, the problem may come down to the heater's controls, which can get clogged over time. This doesn't just have the potential to keep your heater from turning on in the first place, but it could result in a stuck heater control valve that causes cool air to flow through regardless of your temperature setting.

4. Heater Core Issues

Heater cores perform heating and defrosting functions in your vehicle. There could be many potential issues at play, including clogs in the core's tubing and the inability for coolant to travel through the core. In addition to your AC not blowing warm air, signs the heater core is faulty include excessive window condensation and consistently low coolant levels.

Heater issues are among the worst car repairs to deal with during winter, so take your vehicle to M & R Automotive Service Center of Geneseo, NY, for prompt and reliable service. This locally owned and operated auto repair shop has been helping drivers throughout Livingston County for over 20 years, and their auto mechanics always provide thorough reports once their work is complete. Visit them online for an overview of their services, and call them at (585) 243-1201 to schedule an appointment today.