Many times a central air conditioner will provide clues that it is not working properly. By paying attention to the symptoms of a malfunction and repairing the small things right away, you can avoid an unexpected and costly breakdown in the future.
1. The AC is Making Strange Noises
If you hear knocking, pinging or other unusual sounds, don't ignore them. They may indicate that there are loose or worn parts that are about to fail.
2. Your Utility Bill Is Unexpectedly High
Air conditioners generally become less efficient as they get older, making annual maintenance all the more important. As the system runs more to keep the temperature the same, your utility bill will also increase.
3. All Or Some Areas of the Home Are Not Comfortable, Even If You Lower the Thermostat
If the system is not able to keep up with demand, it may be low on refrigerant, have a blocked, frozen or leaking evaporation coils.
4. The Air Is Cold, But Too Humid
Humid air can be a sign of leaking air ducts, an AC unit that is not properly sized for the home, a frozen condenser coil or another malfunction. Your HVAC technician can diagnose the cause and recommend solutions.