My ac works rine but when i raise the temperature to get hot air in, its not warmimg.
Check the coolant level, refill if it is low then recheck, if the level is good then it is possible that the blend door that directs the air from A/C to Heat is stuck, most common is the servo motor, the big problem is that most of these servos you can't get too without removing the entire dash. I recommend you take this one to the professionals. They can pull the HVAC codes and be able to tell you exactly what is will take.
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