If your air conditioner make a loud hum check the following 1.
Central air condenser fan making noise.
Is your ac screaming whistling.
This can result in a loud humming noise.
If this is your problem remove any debris from the unit and check the fan blades for dents or dings.
The problem is likely the fan.
Clanking or banging if you re hearing these sounds from your unit the issue is usually the blower assembly or the motor.
The hvac s fan motor could be seized unable to spin but power is still going to it creating.
Noisy air conditioner solution.
4 buzzing loose parts debris in either the indoor or outdoor unit outdoor fan motor is loose or about to fail fan blades are loose or out of balance the copper lines from outside to inside are rubbing against something the condenser coil needs to be cleaned the air filter needs to be changed the.
Fencing one or all sides of an air conditioner s outside unit can deflect noise.
If you hear the clicking noise while the ac is running it could mean a small object has nestled its way into your blower fan so the object hits against the fan as it spins.
When air conditioning units get dirty debris can impede the fan s circulation inside the unit.
Parts on condenser fans can come loose and knock against other parts of the outdoor unit making a banging noise.
To examine your noisy air conditioner remove the outside casing to reveal the inner part of your ac unit you will notice the fan located just in front of the coils.
Complaint you hear a high pitched whistling or screaming sound for 10 15 minutes after the ac first kicks on.
Squealing if your air conditioner is making a squealing sound the belt connecting the motor to the blower may have slipped or the bearings on your condenser fan s motor may be worn down.
If your air conditioner is making a humming noise the culprit is likely dirt or dust.
If you hear the clicking noise when you try to start your ac but it won t start that s usually a sign of an electrical issue within the thermostat compressor or capacitor.
No reason to fret though.
If you hear a loud rattling noise it could be a minor issue like loose stones or debris that s caught in the condensing unit.