central air conditioning service 2

https://charlie-wiki.win/index.php/Why_Now_Is_the_Time_to_Switch_to_Heat_Pump_Technology

Last summer, our central AC started making a weird grinding noise and barely cooled the downstairs. Called a local service, and the tech found a failing compressor and low refrigerant. They replaced the part, topped off the coolant, and cleaned the outdoor coils. Took about four hours, but the house finally felt like an icebox again. Now I schedule annual checkups to avoid that panic.