If you hear clicking or buzzing noises coming from your ductless mini split, it is often a sign of an electrical or mechanical issue that requires professional attention. These sounds are distinct indicators that specific components of your system are struggling to operate correctly:
- Repetitive Clicking: This typically points to an electrical issue with the internal contactor or a failing relay on the control board. While it is normal for these components to click once when responding to the thermostat, constant clicking indicates that the electrical signal is being sent but the connection is not completing properly.
- Buzzing Noises: This sound frequently suggests that the compressor is overworked or under strain. It can also indicate that a fan motor bearing is beginning to grind down and fail.
Identifying these unusual noises early can prevent minor mechanical hiccups from escalating into a total system breakdown or expensive compressor damage.
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