we just bought my son a used car and suddenly there is no air blowing in heat ac or defrost. was working
Jun 9, 2015 at 6:50 PM
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ED-WEEZY21
CERTIFIED EXPERT
248 POSTS
It may be a few things. I would check the blower motor relay which should be under the hood in the junction box. If the relay is good, the blower motor may be defective. I would have a pro check bench test the blower motor by jumping the pins. Lastly, the heater control module or the switch may be defective. Best of luck.