Tesla Model S A/C Failure Fixed Same Day: Real Road-Trip Rescue at PROFIX


Philip Defatta • July 24, 2026

Tesla Model S A/C Failure and Supercharging Disabled: A Proper Diagnosis Saves the Day

When your Tesla’s air conditioning quits in the middle of a long summer drive, the clock starts ticking fast. That’s exactly what happened to a 2017 Tesla Model S 90D heading from Austin toward California. The owner made it to Leon’s PROFIX Auto Repair in Norman, and we got the car in the same day.

What We Found During the Tesla A/C Diagnostic

The customer reported the A/C was completely out and Supercharging was disabled. Our technician put the Tesla into service mode, ran a full thermal system test, and confirmed the compressor was offline. System pressures were around 110 PSI (still had refrigerant), but several alerts were active, including compressor communication faults and a failed multi-purpose relay (K101).


After isolating the circuit, we confirmed the relay controlling the compressor had failed. We replaced it with a new multi-purpose relay, restored power, and brought the thermal system back online. The compressor came to life, the A/C cooled properly again, and the Supercharger-related alerts cleared.


The Result

A/C restored. No active alerts related to the climate system or charging. The Tesla was ready to continue the road trip.


Read what our customer had to say about our service:

Google Review ★★★★★

Julia Kedrinskaya

2 days ago

I had an outstanding experience with PROFIX! My Tesla Model S had an AC compressor failure during my road trip from Austin to California, and they got me in the very same day. The team performed a thorough diagnostic, quickly identified the root cause of the problem, and fixed it efficiently.

From start to finish, the service was professional, honest, and transparent. They took the time to explain everything, and I felt confident my car was in expert hands. It’s not easy to find a shop that knows how to properly diagnose and repair Teslas, but PROFIX exceeded all my expectations.

Top-notch customer service, excellent communication, and quality work. I highly recommend this place to anyone looking for knowledgeable, reliable, and trustworthy service. Thank you for getting me back on the road so quickly!

View original review on Google →

Why Proper Tesla Diagnosis Matters

Tesla climate and thermal systems are tightly integrated with the high-voltage battery and Supercharging system. A simple “A/C not working” complaint can quickly turn into a Supercharger disabled situation if the root cause isn’t diagnosed correctly.


At Leon’s PROFIX Auto Repair, we use the proper Tesla service tools, read the full alert list, and test the actual circuits instead of guessing.

Same-day Tesla A/C diagnosis and repair on a road-trip car is what we aim for whenever the schedule allows. Honest recommendations are part of the job too — we’d rather tell you what’s coming than leave you stranded later.


If your Tesla Model S, Model 3, Model Y, or Model X is having A/C problems, Supercharger issues, or thermal system faults, bring it to Leon’s PROFIX Auto Repair in Norman. We’ll get you in, find the real problem, and get you back on the road.


Give us a Call or Book Online at Either of Our Two Convenient Locations Below

PROFIX Auto Repair – West

1121 Rambling Oaks Dr

Norman, OK 73072

📞 (405) 310-2279

🕒 Monday–Friday: 7:30 AM – 5:00 PM

Book Online at PROFIX Auto Repair - West

Leon’s PROFIX Auto Repair – East

521 N Porter Ave

Norman, OK 73071

📞 (405) 364-2799

🕒 Monday–Friday: 7:30 AM – 5:00 PM

Book Online at Leon's PROFIX Auto Repair - East

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