A/C problems

[krieg]

I have a 2014 Toyota Camry SE 4-cylinder non-hybrid model with 140,000 miles. The car is displaying a flow rate sensor circuit code and a rough idle code (which I don't think is related to the AC issue). The AC compressor never turns off; the clutch is always engaged and spinning.

The issue began with the car only blowing hot air. We vacuumed the AC system, recharged it, and initially, the car blew cold air. However, it soon started blowing cool air, then humid and tepid air (not hot). The problem persisted even after restarting the car. While driving, the AC would occasionally blow cold air for about 10 minutes before returning to cool/tepid air.

The next day, we connected a scanner to check the AC system codes and found a flow sensor code. The live data showed the sensor readings fluctuating, but not drastically. We replaced the flow sensor, but the new sensor was stuck at 4.38 volts. Thinking it was defective, we exchanged it for another one, which read 4.36 volts and still didn't fluctuate.

Currently, after driving for about 10-15 minutes, the AC blows cold air for about 10 minutes, then goes back to cool/tepid for another 10-15 minutes, and the cycle repeats. Turning off the car and revving the engine slightly seems to help it cool down a bit.

Additionally, on the scanner, we noticed that the sensor in front of the condenser read 100°F, while the outside temperature was around 93°F. The scanner also showed that the clutch cutoff was set to "off."

We need advice on how to proceed, especially living in a hot climate like Houston.

[Uri266]

Good morning. Just wondering if you found a fix for this issue. My 2015 Toyota Camry is having a very similar issue. My AC doesn't blow any cold air at all, just warm tepid air. I also vacuumed the system and recharged it and it holds the pressure. I got the flow sensor code as well and voltage was low, reading between 2 and 3 volts. I replaced the flow sensor and cleared the code. Still blowing warm air and after letting the car run, the flow sensor code returned. This time the voltage was reading around 4.7 volts. My next logical step would be to replace the AC compressor, but I'm hesitant since I don't know for certainty that the compressor is the problem. Hoping that you found a solution and may be able to provide some insight that may help me. Thank you in advance.