Sencor
Outdoor Vibration / Mechanical Noise
Outdoor unit vibrates excessively or makes banging noises, especially at compressor start-up.
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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 bolts, Unbalanced fan blade, Worn compressor mounts, Unit installed on unstable surface
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before working on the outdoor unit.
- Step 1 – Check mounting: Ensure the outdoor unit is securely bolted to its base or wall bracket. Tighten loose bolts.
- Step 2 – Inspect fan blade: Look for bent or cracked blades. Replace the fan blade if damaged.
- Step 3 – Level the unit: Use shims or adjust brackets so the unit is level and stable.
- Step 4 – Compressor mounts: Inspect rubber compressor mounts for cracking or collapse. Replace if the compressor appears to sit unevenly.
- Step 5 – Anti-vibration pads: Install rubber pads under the base to reduce transmitted vibration.
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Repair Difficulty
Medium
3/5
Required Part
Outdoor Fan Blade
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