Lately, I’ve noticed when my A/C is set to low it blows full blast. After a while it will correct itself. Today I got in the car and set the A/C to full blast and nothing ! After about 3 minutes of driving the A/C cut on. I’ve also notice what ever level I set it at there’s a delay to get there, any suggestions of what it could be ? Is there a solution that I can fix myself ?