These types of sounds are often the result of the fan blades hitting something that has ended up inside the unit such as a chunk of ice or another component.
Outdoor hvac unit making loud noise.
And just like the indoor fan parts can become loose.
Is your ac screaming whistling.
Read on to find the best solution based on the cause of the problem.
Unusual or unexpected noises coming from your outdoor unit is a sign that your unit may be in some need of mechanical or electrical maintenance or repair.
And then the fan can hit other parts of the outdoor unit causing a slamming sound.
Your outdoor unit also contains a fan.
When the outdoor unit runs there s a clanging or banging noise coming from it the noise doesn t happen with you turn your thermostat to fan.
Fencing one or all sides of an air conditioner s outside unit can deflect noise.
During the winter whenever the heat pump goes into the defrost mode this valve shifts.
Noisy air conditioner the outside condenser of a central air conditioning unit can be very loud.
An air conditioner compressor.
You hear a high pitched whistling or screaming sound for 10 15 minutes after the ac first kicks on.
How to fix loud strange noises coming from your ac unit.
Do you hear a loud banging noise coming from your outdoor unit.
Parts on condenser fans can come loose and knock against other parts of the outdoor unit making a banging noise.
High efficiency ac units incorporate sound dampening technology and two stage variable speed compressors to keep noise levels below 55 decibels.
The outdoor unit s fan is hitting something could be an obstruction that shouldn t be there like a stick or that the fan has come loose from the mount and is wobbling and hitting its protective cage.
Your ac compressor is the part that s responsible for circulating refrigerant the liquid gas that cools your home s air.
Sometimes a heat pump may make loud noises that sound like metal hitting metal inside the unit.
Prop up plywood around the unit so you can judge how much good a fence will do.
You should turn the unit off immediately and inspect the fan.
Although some of the noises your air conditioner makes are expected and can be attributed to its normal operation there are a few sounds that warrant the help of a licensed hvac professional.
The problem is likely the fan.
Heat pumps have reversing valves that reverse the flow of refrigerant between the heating and cooling modes.
Outdoor unit makes strange or loud noises.
Noisy air conditioner solution.
Causes of an air conditioner s buzzing noise.
Fan knocking against unit.
So if you hear unusual sounds coming from your air conditioner during normal operation don t ignore them as this could be a sign that the unit needs a repair or upgrade.
If you notice a loud buzzing noise coming from your air conditioner chances are your unit is malfunctioning.
If so it s probably the compressor.
The sound isn t necessarily an indication that the compressor will fail anytime soon.
