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A/C compressor not working, where is the relay switch located?

Tiny
VINSON115
  • MEMBER
  • 2018 HYUNDAI TUCSON
  • 2.0L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 122,234 MILES
A/C worked fine then when tried to start A/C again nothing but hot air coming out car did not run hot noticed A/C compressor was not cutting on was told to change relay switch but cannot find the relay switch anyone know where it’s located?
Saturday, August 31st, 2024 AT 8:12 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
If the A/C system is low or out of refrigerant the system will not switch on FYI. The relay is called an "A/C relay" in the main fuse panel under the hood. I would go over this video as well:

https://youtu.be/4EqdrBVb0sY?si=zcw_lz2KQC1AP83c

and this guide:

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Since I don't see the A/C relay in the engine fuse panel it must be integrated into the engine room junction box. Here is the location so you can see, check out the images (below). Please let us know what happens.

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Saturday, August 31st, 2024 AT 5:11 PM

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