Why My Car Heater is Blowing Cold Air ?

During the winter months, your heater blowing cold air is the last thing you need. Your car heater usually provides the perfect refuge from the frigid, cold air outside. So if you are struggling with your car heater and it is blowing cold air, you want to get your car serviced ASAP.

We will share a few causes for your car heater blowing cold air. Check out the sections below to uncover how to fix your car's heater and what service you need to enjoy the comforting, warm air to combat our typical snowy, winter mix. 

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Broken Thermostat 

If your thermostat is malfunctioning, it cannot detect that the engine is warm, which causes the coolant to not send over heat to the heater core, resulting in the cold air blowing instead of warm air. 

To fix this issue and get your heater up and running again, you must install a new thermostat. 

Not Enough Coolant 

Coolant is usually thought of when you are repairing or fixing your A/C, but it also serves as a heat source for the heating system. If you do not have enough coolant in your vehicle, then the heater core will blow cold air through the vents. 

You can add more coolant yourself, but if the problem persists, it is time to take your car to a mechanic to check for possible leaks. 

Blend Door is Jammed

The blend door works to move the air from the heating system to the vehicle internal. If it is jammed then the air skips pass the heater core giving you only cold air instead of warm air. 

If this is your problem, then your blend door must be replaced. 

Issues with Heater Core

Heater cores are small radiator-like cooling devices. There are groups of tubes that transport the hot coolant in and out in addition to fans distributing that heat released by the coolant. But if your heater is blowing cold air, then it means that your heater core is congested. 

You can get this core manually cleaned or cleared out of debris and dirt by a professional. 

Get your Car Heater Serviced at our Service Center near Greenfield

All of these issues above are best to be fixed in the hands of an experienced automotive mechanic. If you find that your car heater is not working properly, we are more than happy to help! If you are in the Greenfield area, we can help you get yoru car heater serviced at our service center. 

If you are experiencing this problem or any other issues, check out our services page for more details. Can't find what you are looking for? Contact us to find answers. 

Schedule Your Car Heater Repair Service