Rep Power: 0

My AC belt has broke off the past couple months or so and haven’t used the AC since last summer. Didn’t bother putting on a new belt till the temperature started rising. I installed the new AC belt, and I’ve quickly noticed my RPM’s would fluctuate between 600-1500 RPM’s whenever the AC is on, AC blows fine whenever I get the car going or press onto the gas. But when I idle for too long it would stay at around 1200 RPMs and blow hot air, I went to check and my fans are blowing normally. Thought it would be me being low on refrigerant, but wasn’t the case I was at operating normal PSI. It would sometimes mess with my IACV which is new and would make the light turn on. But I would reset the car and it would go back to normal. Need help solving the issue