I have an 07 Tucson with Auto Climate Control. It makes a buzzing sound for about 1 min after starting the engine if its been sitting for an hour or so. Is there a little fan to help the sensor sniff the air temp? Or is it an error buzz with no error code. I can tap on the air control panel and the pitch changes. The sound comes and goes as I turn the air on and off. It is not the blower fan.
Thanks for any help you can provide.
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Robert