Seasonal changes necessitate air conditioner repair, so find a reliable AC company and hire a professional technician. The technician will check for refrigerant gas emissions, airflow, electric controls, heater efficiency, and system operation. Signs of failing air conditioners include louder noise, restricted airflow, rising warm air, freezing ice, and leakage. Asking questions about servicing include whether you can service your AC yourself, what happens if the AC isn’t serviced, frequency of service, daily run hours, and testing methods.
Source: https://medium.com/@airblueinc/why-is-air-conditioner-service-required-08433eb1278a
