Hi,
I need a better understanding. First, I agree it is odd that the compressor would fail at the same time, but I'm confused about what is happening. Are you saying the airflow directions all work except the vents? The two really aren't related unless the controller has gone bad.
Do me a favor. With the engine running, open the hood. Have a helper turn the A/C on. You should hear a click when the AC compressor engages. See if you notice it.
Also, I need to know if you have automatic climate control or manual. I would like to read through the wiring schematics to see if the two tie together in any other way than the controller. Additionally, let me know where you heard the humming sound coming from. For example, was it the engine compartment or in the vehicle?
Here is a link you may find of interest in the interim:
https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak
Let me know as much as you can and if you have access to any tools for working on the A/C system.
Take care,
Joe
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Monday, July 18th, 2022 AT 10:05 PM