If your defrost isn’t working, driving can get frustrating fast, especially during Kelowna winters. Foggy or icy windows make it hard to see, turning a short drive into a stressful one. Many drivers ask us why their defrost won’t clear the windshield, even when the fan is on full blast. At Paragon Motors in Kelowna, BC, we see this issue a lot, and the cause is usually something fixable. Knowing what might be going wrong can help you decide when it’s time to book a repair.
Low Coolant or Heater Core Issues
One common reason a defrost system doesn’t work is a low coolant level. Your defrost relies on warm air from the engine coolant flowing through the heater core. If the coolant level is low or there’s a leak, the air coming through the vents may stay cold. A clogged or failing heater core can cause the same problem. You might notice weak heat, fog that won’t clear, or a sweet smell inside the car. These issues don’t just affect comfort. They can also point to bigger cooling system problems if left unchecked.
Blower Motor and Airflow Problems
Sometimes the issue isn’t heat, but airflow. If the blower motor isn’t working correctly, air won’t move across the windshield the way it should. You might hear the fan running but feel very little air, or nothing at all. In other cases, the fan may only work on certain speeds. A clogged cabin air filter can also block airflow, making the defrost feel useless. This is a simple part, but when it’s dirty, it can cause big visibility problems fast.
Controls, Sensors, and Electrical Issues
Modern vehicles rely on switches, sensors, and actuators to direct air where it needs to go. If one of these parts fails, the defrost may blow air in the wrong direction or not respond when you change settings. Electrical problems can also stop the system from working properly. Since these parts are hidden behind the dash, it’s tough to diagnose without the right tools and experience.
Get Your Defrost Fixed at Paragon Motors in Kelowna
If you’re asking, “Why is my defrost not working?” it’s time to get it checked before the weather gets worse. At Paragon Motors in Kelowna, BC, we’ll inspect your heating and defrost system, find the real issue, and explain your options in plain language. Don’t struggle with foggy windows or unsafe driving conditions. Book an appointment with our team and let us help you see clearly and drive with confidence again.