Most ACs are designed to operate quietly as they include sound-dampening features. Thus, if you hear a significant change in noise level during the AC's operation, it could indicate a malfunction. Failure to address the issue promptly may escalate into a system breakdown and cost you hefty repair bills in the future. Therefore, you should engage an AC specialist to inspect your air cooling system and fix the problem for a seamless operation. The following are the reasons your AC is so loud.

Loose Parts

The outdoor unit produces a relatively low degree of noise and vibration from the motor assembly. Over time, these vibrations may loosen the internal components, such as screws and refrigerant line set. In addition, if you fasten the parts awkwardly, they may become loose with time. As a result, you will hear loud humming when you turn on the AC. If this is the case, it is important to contact an AC technician to tighten the parts and fix the loose parts in position for a quiet operation.

Failing Thermostat

Your AC typically clicks at the start and end of a cooling cycle. However, if these clicking noises persist during normal operation, your thermostat could be failing. This happens because when the relay switch sends power to the AC breaks, it continues to send power even when it is not supposed to. However, these faulty electrical signals do not turn on the unit. Instead, you will continue to hear loud clicking noises. If this is the case with your thermostat, you should hire an AC professional to replace it and rectify the wiring.

External Debris 

Your condenser's location exposes it to outdoor elements such as sticks, leaves, and other plant matter. Over time, the debris may collect in the condenser and clog it. Consequently, you will hear buzzing noises as the debris accumulation impedes the fan's motion. In addition, your system may produce humming sounds if a foreign object dislodges the fan. Thus, contacting an AC expert to clear dirt from the outdoor unit is advisable. Furthermore, they will mount a protective cover on the condenser to prevent debris from entering.

Refrigerant Leak

If you hear a high-pitched whistling noise, the refrigerant could be leaking. This is because the coolant lines deteriorate with time, developing holes. As a result, the pressurized refrigerant will produce a whistling noise as it leaks out. If dealing with such a leak, contact an AC contractor to seal the coolant line set and regas the system for maximum cooling output.

A noisy AC will create an uncomfortable atmosphere while spiking your energy costs. Thus, you should hire an AC repair expert to tune up your system and ensure it runs at peak efficiency. For more information on air conditioning repair, contact a professional near you.