This winter, many of us have been dealing with below-average temperatures and a lot of snow. Unfortunately, this type of weather can also cause some issues with our vehicles. One problem is that when the temperature drops, your car’s heater may start blowing cold air. This can cause discomfort and even possible damage to your vehicle.
The Causes of a Car Heater Blowing Cold Air
Car heaters are a necessity in the winter to keep drivers warm. However, when a car heater is blowing cold air, it can be a sign of a problem. Here are some of the most common causes of car heaters blowing cold air:
1. Defective thermostat – A defective thermostat can cause the car heater to blast cold air because it’s not able to regulate the temperature correctly. If you notice that your car heater’s blowing cold air even when the engine is running, chances are that your thermostat is faulty. To test this, try swapping out your old thermostat for a new one and see if the temperature changes.
2. Damaged or clogged ducts – If ducts or vents in your car are damaged or clogged, they won’t be able to distribute heat evenly, which will lead to your car heater blowing cold air. In order to test whether or not your ducts are damaged, try using an infrared camera to inspect them for any obstructions. If you find any problems, call an expert to take care of them.
3. Defective fan – A malfunctioning fan can also be responsible
How to Fix the Car Heater Blowing Cold Air
If you’re noticing your car heater is blowing cold air, there’s a good chance your thermostat is off. What to Do If Your Car Heater Blows Cold Air
If your car heater is blowing cold air, there are a few things you can do to fix the problem. First, check to see if the thermostat is turning the heater on and off correctly. If it isn’t, you may need to replace the thermostat. If the thermostat is working properly, another possibility is that the fan motor has gone bad and needs to be replaced. Finally, if all else fails, you may need to replace the car heater itself.