Modern technologies have made it possible to make quiet air conditioners. Most homeowners want air conditioners that operate that way. Most of these units feature sound-dampening technology and variable-speed compressors to ensure the noise levels are always lower than 55 dB. Thus, if your air conditioner is producing unusual sounds, you should not ignore it. That is because it can sign that it requires an upgrade or repair.
When you ignore the noises emanating from your AC, they are likely to become a serious problem. As soon as you determine the case, you can resolve the AC problem. For an air conditioner making noise, you should consider consulting a technician for help. These are some of the noises and their causes.
Banging
You should note that banging is a sign of having a broken or loose component. For instance, a piston pin, crankshaft, or connecting rod inside the compressor may be broken. Also, this sound can be produced by an unbalanced indoor blower. The truth is that banging noise is a sign that the compressor system requires repair or replacement.
Clanking
This is another sign of having an out-of-balance or loose component. In this case, you can find parts inside the unit to have failed. Also, the compressor may be a bit loose and requires replacement. Another probable cause of this sound is that the blades of the outdoor fan or blower are out of balance. As a result, they hit other parts. Such issues can create problems when they are ignored.
Clicking
This type of noise in your AC unit is generated by electrical components, especially during shutdown or start-up. In most cases, there is no cause for alarm. However, continuous clicking is a sign of a failing thermostat or having a defective control unit. Since there are different types of electrical components, there is a need to pay attention to the electrical issues whenever they occur.
Buzzing
Having a buzzing noise is a sign that your air conditioning unit has loose parts, or there is debris inside. You should consider changing their air filter and ensure the blower is balanced. You should note that refrigerant leaks due to freezing up of air conditioning can cause this noise.
Humming
You may not be concerned about the humming sound. However, if it happens when the conditioner is off, you have a reason to be concerned. In most cases, buzzing or humming noise is a sign of having electrical issues. Sometimes you may need to fix loose wiring.