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Q: air conditioning problem - 2005 Nissan Sentra

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It wont come on at first when I come out from work at midnight. It's sat in the sun and never had this problem before. I start the car and it wont come on period, the heating or ac, I slam the door or just wait or start and restart the car or something and it slowly comes on again and it blows cold air and hot air, it's normal in that area. The lights that show the gears to put the car in near my leg are out cola shorted it long ago. Then the ac setting's light went out at the far right that you choose where the air goes. the rest have come on normal till recently I have to thump the panel and they come on. Could it be a short in a plug to my ac or what the light panels don't bother me, I can turn on my over head light. I just want to know why it started doing this out of the blue and is it usually expensive to repair with a mechanic
My car has an automatic transmission.

A: Hey there. It does sound like you have elec...

Hey there. It does sound like you have electrical problem(s). Some cars have a blower motor resistor "block" which goes bad (resistors "open"). So, it could be something straightforward like that but it could also be another fault in the circuit. Fixing electrical issues are relatively inexpensive compared to more involved repairs. If you would like to have this looked at, a certified technician from YourMechanic can inspect your AC system to diagnose the root causes for this problem.

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