We just bought my son a used car and suddenly there is no air blowing in heat ac or defrost. Was working
Tuesday, June 9th, 2015 AT 6:50 PM
1 Reply
ED-WEEZY21
MECHANIC
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.