Many homeowners prefer ductless AC systems because of their energy efficiency and whisper-quiet operation. Any increased noise from your system indicates a potential problem you should address. Below, we will discuss some strange noises and what they mean for your ductless mini-split in Mount Juliet, TN.
Grinding
Depending on where the noise comes from, various things can cause a grinding or rattling noise in your ductless mini-split system. If it comes from the outdoor unit, it could be due to foreign solid materials, like debris.
A noise from the air handler could result from worn-out bearings that cause increased friction. All air handler’s moving parts involve oiled bearings to reduce friction during operation. These bearings require regular maintenance to stay in good working condition.
Hissing or Bubbling
If your mini-split system is making a hissing or bubbling sound, it indicates that air bubbles are forming in the refrigerant line. These bubbles usually form when there is a leakage in the refrigerant line. Take this seriously, as it can significantly reduce the efficiency of your system or even lead to a breakdown if not repaired promptly.
The hissing sound can also indicate excess moisture in your ductless AC system caused by water leakage in the drain line. This can happen when the line has holes or clogs.
Vibrating
A loud vibrating noise in the condenser can indicate various problems with the unit. It can indicate a severe electrical system fault that can significantly lower energy efficiency if not checked. It can also be due to broken fan blades in the compressor.
Once you start hearing strange sounds from your ductless mini-split, it is important to seek professional help immediately. Our team consists of NATE-certified technicians ready to provide excellent service for you. Call Derryberry’s Heat & Air today for assistance with ductless AC repair services in Mount Juliet, TN.
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