How to Fix It When Your Car Heater Isn't Working

If cold air is coming out of the heating vents even when the vehicle is warmed up and the thermostat is set to hot, you could be dealing with one of the following problems:

If the heater isn't blowing any air, the problem is likely a faulty blower motor or electrical connection.

These instructions will help you diagnose and fix a car heating system that blows cold air. If the heater isn't blowing any air, skip to the next section.

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