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Front air vents don't open when charging at home! Very loud!

Front air vents don't open when charging at home! Very loud!

I don't live near a supercharger, so I can't test that. But at home, if I charge at 24a with 3 phase power, the fans go crazy high since the louvres don't open.

I recorded a youtube video of it...

https://www.youtube.com/watch?v=3pwEQIty-E4

If I keep charging at say 12a or less, it doesn't get warm enough. 20C outside, and rainy...not exactly a very warm day or anything.

Anyone else have this? Is my best option waiting for Tesla service appointment?

Anthony J. Parisio | August 1, 2019

Yes I had the same situation on a hot day while charging at home. Yes my car sounded just like the video. No the vents did not open.

I stopped at the Tesla SC on the next day to ask about the vents not opening. The Tech. said the vents do not open while parked. The are for driving at high speed. He said the center vent is all that is needed to cool while charging even on a hot day. Also the loud fan noise while charging is normal. I have heard and seen the same thing at superchargers. It seems it does not have to be a very hot day for this to happen.

jordanrichard | August 1, 2019

Anthony, that Tech is dead wrong. My front louvres have opened numerous times when supercharging. I have even seen them open when just the AC is running.

If the car needs additional cooling while charging be it at a supercharger or at home, the louvers will open. Don't over think this. If there was a fault, the car would give you a message as such.

hammer @OR-US | August 1, 2019

@anthony "stopped at the Tesla SC on the next day to ask about the vents not opening. The Tech. said the vents do not open while parked. The are for driving at high speed."

That is exactly backwards. The reason the louvers are there is to be closed at high speed to reduce drag, The air of the moving car is all that is needed to keep the evaporators ventilated They open when parked and charging where there is no car movement and the fans need to draw more air through the side evaporators.

Bighorn | August 1, 2019

Yes, they absolutely open while charging. Whether they needed to be open for the OP is tough to determine, but Level 2 generally doesn't lead to mine opening at 24A.

Anthony J. Parisio | August 1, 2019

The did check my car's logs and told me there was no fault. The tech I Talked with is the head of the SC. I was not supper charging. I was at home with 240V at 50 AMPS.

Anthony J. Parisio | August 1, 2019

The = They

DonS | August 1, 2019

The vents are normally closed to reduce drag while driving, but they will open anytime the system needs more cooling, even on the highway. I recall seeing a diagnostic window that showed coolant temperatures, and I assume that there is a temperature sensor that controls whether to open the vents

johncrab | August 1, 2019

In five years the only time my S does this is when supercharging on a hot day with 100+ Amps going to the car. Usually there is a symphony of multiple cars howling away, but this has never happened when charging at home. My louvers open when this occurs and they open when I turn on the AC to pre-cool my car in my garage. Tesla has been fiddling with firmware a lot in the last two months so this seems like another bug.