Strange noises from your air conditioner that don’t go away often require help from seasoned professionals. Those offering AC service in Johnsburg, IL, can inspect your system and determine whether it needs repairs or replacement.
But why is your AC making a weird noise in the first place? Discover the potential causes of unusual noises you may hear when an air conditioner begins operating.
Humming Noises Indicate a Malfunctioning Relay Switch
Johnsburg, IL, has a humid continental climate, which means our area of northern Illinois experiences hot, muggy summers. Therefore, having a functioning air conditioner is a must.
But if you notice a humming noise when your AC starts running, that means the contactor relay switch isn’t working correctly. This affects the outdoor condenser unit’s ability to operate, resulting in a humming noise. Your house will not cool properly as a result.
A Broken Fan in the Outdoor Unit Can Produce Odd Sounds
Loose fan blades in the outdoor air conditioning unit often create buzzing or rattling noises. When the fan fails to spin as intended, the cooling system fails to operate efficiently, resulting in higher power bills.
Buzzing Sounds Can Have Multiple Causes
Why might your AC be making a buzzing noise? Some of the reasons you might hear a buzzing noise when the air conditioner turns on include:
- Dirty condenser coils
- Unbalanced fan blades
- Fan motor problems
- Loose parts
- Leaking refrigerant
Such problems can cause permanent damage to the cooling system if not addressed immediately. You should stop running the air conditioner the moment you hear a buzzing noise and call a professional.
A Failing Compressor Will Cause Loud, Weird Noises When Your AC Unit Turns On in Johnsburg, IL
A compressor that has come loose or isn’t working properly could lead to loud banging or clunking noises. This part is essential to proper cooling system operation; therefore, you should immediately call for help when you hear these kinds of noises.
If you need a new air conditioner because of a failed compressor, Johnsburg, IL, requires obtaining a permit for the work. Licensed HVAC professionals will do this on your behalf. On the other hand, if you only need repairs to the compressor, they can get everything up and running again during the same visit without the need for pulling a permit from the city.
Strange Clicking Sounds May Show Problems With the Thermostat or Wiring
Many air conditioners will occasionally click as they switch modes. However, if the clicking repeats several times when the cooling system begins operating, it could indicate problems with a loose wiring connection or a malfunctioning thermostat.
Loose Parts and Contaminants Cause Rattling Noises
If the unit has loose screws or debris moving inside the vents, you might hear a loud rattling noise. While you can sometimes visually inspect the system for loose parts and try to tighten them, it’s best to hire a licensed HVAC technician to provide a more thorough assessment, as they can identify and fix problems that may not be obvious to a layperson.
If You Hear Water Gurgling, You May Have Refrigerant Line or Drain Line Issues
A drain line clog is a common air conditioner problem resulting in trickling or gurgling noises. The water generated as the air conditioner operates may find an alternative way to escape when the drain line is clogged, causing those distinctive sounds.
A leak in your refrigerant line may also lead to similar symptoms. Because the refrigerant is under high pressure, it often produces hissing, screeching, or gurgling noises as it escapes.
Johnsburg, IL, follows federal regulations for handling refrigerants, which are toxic if ingested and must therefore be handled with the utmost care. Only licensed HVAC professionals can add more refrigerant to your air conditioning system after a leak.
Trust WeatherWise Heating & Cooling When Your AC Makes Strange Noises After It Starts Running in Johnsburg, IL
Why is your AC making a weird noise, and what should you do about it? If you hear any unusual noises from the air conditioner as it starts up, such as clanking or screeching, don’t hesitate to call us for assistance. At WeatherWise Heating & Cooling, we provide prompt AC maintenance and repair services to address unusual noises and performance issues.
Call us today for an appointment. We serve all neighborhoods throughout the Johnsburg, IL, area, and look forward to providing repairs and installations you can always count on.