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2010 Kia Forte: -No A/C light -Fan works until you drive awhile or the car gets real hot in the sun (Strange Yes)

2586 Views 26 Replies 9 Participants Last post by  mobileterminaluser
2010 KIA Forte - When I get in the car first thing in the morning (Florida so not exactly freezing) I turn on the defroster no light however I can hear a click and it does defrost the rear window. No A/C light and the blower blows hot air. About 30 minutes in on the ride to work, the A/C kicks in , light comes on, and blows cold. Now the strange part - If the car sits in the hot sun lets say until after 11-12 o'clock the A/C works like normal. ?? On a sunny hot day I leave work and it works fine.

Any ideas?
Thank you!
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What year and model car is it? That MIGHT help. I used to live in FL and mine did something similar to what you're experiencing. Take a look at the plug on your blower motor. Mine had melted and shorted to ground. I spliced in two new spade connectors and have been trouble free for 3 years now. Cheap plastic plug got too hot from running the a/c everyday, I guess.
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Check that damned blower motor connection first. It's kind of a pain in the neck to take the switch apart. I started with the switch. Took it apart and cleaned it with emery cloth. Didn't make a bit of difference. My first thought was the blower motor, but the car was only a couple of years old, so I passed on my gut instinct. I won't do that again. Good luck with it and let us know what you find, okay?
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Since it quits working when it gets hot, you've got something in the system with a thermal problem. Damned near impossible to find these. I used to own a delivery service and we used Motorola radios to dispatch calls for deliveries and pickups. I had one unit that would stop transmitting when it got hot because it had been mounted in my van where it would be in the sun sometimes depending on where I parked it. I could run the a/c for 15 or 20 minutes and it would cool down and start working again. The guys at the radio shop couldn't ever find the issue, but I solved it on my own by taking a small, light weight cardboard box and painting it bright white. I would put it over the radio when I got out of my van and when I came back, I would remove it and check in with the office. Worked like a charm. When I replaced the van, I told the radio shop NOT to put that sum beech in my new one. I got a new radio and never had an issue with it. What is happening is when something gets too hot, it's breaking the connection. By the time you pull things out to look out, it's probably been long enough for whatever it is to cool down and reconnect. Good luck solving this problem.
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