AC AMC stands for Annual Maintenance Contract, a service agreement between the AC service provider and the customer. With an AMC, the provider will perform regular maintenance tasks on your AC system at a predetermined schedule for a fixed fee. This can help you avoid unexpected repair costs and ensure that your AC system is always in good condition. Whether you need an AMC or not depends on your usage and requirements. An AMC may be a good option if you use your AC frequently and want to ensure its longevity.