Hoshizaki
Excessive Noise / Vibration
Unit is very noisy during operation (rattling, grinding, or loud humming)
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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 panels or mounting hardware, Worn condenser fan motor bearings, Compressor mounting grommets deteriorated, Unit not level causing vibration
How to Fix / Troubleshooting
Safety First: Disconnect power before tightening or touching moving parts.
- Level the unit: Use a level to check front-to-back and side-to-side. Adjust leveling legs until stable.
- Tighten panels: Check all screws on front, side, and top panels. Tighten any loose fasteners.
- Inspect fan motor: Spin the condenser fan by hand with power off. If rough, noisy, or wobbly, replace the fan motor.
- Check compressor mounts: Inspect rubber grommets under the compressor. Replace if cracked or collapsed.
When to call a technician: Grinding or metallic noises from the compressor itself indicate internal failure and require professional service.
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Repair Difficulty
Medium
3/5
Required Part
Condenser Fan Motor
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