Question by  falconsqb6 (54)

My Trailblazer's heater fan is not working, how do I fix it?


Answer by  happytimes63 (865)

First, always check the fuse to see if it has blown. If that is the case, replace fuse, and make sure the intake for the fan is clear of debris. if the fuse is not burned, the fan is located under the hood close to the windshield area. It will be a round can shaped device. replacement is pretty simple.


Answer by  Doug77 (1433)

The first two, easiest, tests are; checking the fuses and hitting the motor. If the fuse is blown, replace it. If it's OK then locate the motor and smack it with your hand. After that, use a 12 volt test light to check for power at the motor and regulator.


Answer by  Milette (1105)

Check to see if the fuse has blown. If so, replace it. Otherwise you will have to replace the fan or take it to a professional auto repair shop.


Answer by  umesh (11)

Most probably you will be having problem with blower motor resistor. so remove the passenger side close out panel underneath the dash. Near blower motor,resistor is held on by two screws.


Answer by  gbonez (86)

the best thing to do is to take it to an auto shop and let a professional look at it.

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