Arctic King
Excessive Vibration / Loose Components
Loud rattling or vibrating noise during operation, especially when the compressor starts.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Loose mounting screws, Bent fan blade, Misaligned blower wheel, Compressor mounting grommets worn
How to Fix / Troubleshooting
Safety: Unplug the unit before tightening or adjusting any internal parts.
Steps to reduce noise and vibration:
- Check installation: Ensure the window unit is firmly secured in the sleeve or window with no gaps that allow it to rattle. Use foam strips where needed.
- Tighten screws: Remove the front cover and tighten all accessible chassis and fan housing screws.
- Inspect fan blades: Check the indoor blower wheel and outdoor fan blade for cracks, missing pieces, or wobble. Replace the blower wheel or condenser fan blade if damaged.
- Compressor mounts: Inspect the rubber grommets under the compressor. If they are cracked or missing, replace the compressor mounting grommets to reduce vibration transfer.
- Test run: Reassemble and run the unit. If noise persists, a technician may need to check for internal frame damage or out-of-balance components.
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Repair Difficulty
Medium
3/5
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