Generally, the ductless HVAC equipment in your South Bend, IN home runs quietly. If your system starts making unusual noises, it’s important to know what they mean and if they need addressing. Here are five unusual ductless HVAC sounds to listen for, along with what they may indicate about your equipment.
1. Buzzing
Faulty motors, compressors and even electrical issues can produce buzzing sounds. If your ductless system is experiencing any of these issues, one of our technicians can help.
2. Grinding
If you hear grinding coming from your ductless mini-split, this sound can signal that the motor bearings are wearing out. These bearings reduce friction, but when they become faulty, friction increases.
3. Hissing
Ductless mini-split systems rely on refrigerant to cool your home. If the conduit that carries this fluid between the outdoor and indoor components leaks, you will hear a hissing noise. A leak like this requires immediate repair by a skilled ductless AC technician.
4. Popping or Cracking
Minor popping or cracking noises are a common occurrence when the plastic housing of the mini-split unit contracts as it cools and expands when warming up. Expansion and contraction are normal, but they sometimes produce an audible, temporary popping sound. Unless it happens constantly, this sound is more of an annoyance than something to worry about.
5. Rattling
Your mini-split equipment has many internal components and parts. Bolts and screws will sometimes come loose, causing a rattling noise you can hear when the appliance is running. Our service technicians look for loose components and tighten them during routine maintenance.
When you hear unusual ductless HVAC sounds coming from your South Bend, IN system, it’s time to call for service. Contact Titan Mechanical Services, LLC to schedule maintenance for your ductless mini-split.
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