Weird (deep) sound coming from ventilation

Rattling Ducts A rattling noise from an air duct can mean something is loose about the duct, such as the joints, and that you are losing heat from it. In some cases, the duct might be smaller than the vent opening, which causes it to move back and forth and rattle as air passes through.

Why do I hear something in my vent?

A whistling or roaring sound from a supply air vent could mean either the vent has too much air flowing through it or the volume damper inside the vent is partially closed, restricting the normal airflow. Homeowners often close vents in empty rooms so they don’t spend money to heat or cool unoccupied space.

Why does my vent make a buzzing noise?

Even with air filters, debris can still make its way into the ducts. This can cause rattling, buzzing, or flapping noises as the air moves the debris around the ducts. If you’ve replaced the air filter and still hear these noises, call a professional to clean the air ducts.

How do I fix the whistling noise in my car vents?
When the fan is turned on the leaves will spin around the blower motor making a rustling sound remove the blower motor. And use an air nozzle to blow away the leaves.

When I turn my heat on in my car it makes a loud noise?

Loud noises you hear when your car’s heater or air conditioner are on typically indicate a blower motor issue. The good news is that a blower motor problem like this can be the result of something as simple to fix as debris or trash that got caught in it.

Why does my air filter make noise?

A whistling noise in your air filter is caused by one of two things. First, your air filter may be faulty or defective. If the whistling began immediately after installation, or before the filter had a chance to get dirty, that is the cause.

Why is my air filter making noise?

An air purifier will make noise because dust has built up on the ionizer pins, or the filter is clogged, incorrectly installed, or needs to be replaced. Other causes include debris (or foreign objects) lodged in the filter or housing area, a poorly placed air purifier or high running speeds.

Why do my air ducts rattle?

Rattling. Rattle noises are sort of spooky, but they are most likely simply the result of loose or incorrectly sized ductwork. When the system is on and air pressure is optimized, loose ducts can rattle against each other and cause this obnoxious and long-lived sound.

Why is my blower motor so loud?

The blower motor needs routine lubrication, and often a specific kind of lubrication to upkeep performance and function over time. Otherwise, the fan might seize up and cause a loud noise (and an even louder repair bill). If you are knowledgeable of the process, you can add lubrication to the motor.

How do you know if your heater blower motor is bad?

What Are Signs Your Blower Motor Needs to Be Replaced?

  1. Poor or Airflow from Air Vents.
  2. No Airflow At All From Vents.
  3. Skyrocketing Energy Bills.
  4. Strange Noises When You Turn on the Heat.
  5. Overheating Blower / Weird Smells.

Why does my car make a noise when I turn the air on?

So if you turn on your AC and hear a rattle, it may mean you have a failing or bad: AC compressor. Rattling or your car air conditioner making loud humming noises which get worse as you accelerate can both be signs you need to replace your AC compressor.

What sound does a bad AC compressor make?

Loud noises when the compressor is running

A worn bearing will produce a high pitched squealing or grinding sound, while a seized bearing will produce a grinding noise or a noticeable belt squeal.

Why is my AC making a weird noise in my car?

Buzzing: A buzzing sound is a sign that your AC compressor is likely beginning to wear out. Usually this means you’ll have an overcharged system, which likely means there’s too much refrigerant in the system. In such a circumstance, too much liquid refrigerant will enter the compressor intake port and start to vibrate.