Kenmore
Excessive Vibration or Fan/Compressor Noise
Kenmore hybrid (heat pump) water heater is very noisy during operation
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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 fan blades, debris in fan, compressor mounting issues, unit installed on resonant flooring, clogged air filter
How to Fix / Troubleshooting
Safety: Turn OFF power before removing covers. Avoid contact with moving fan blades.
- Clean air filter: Remove and clean or replace the top air filter to ensure proper airflow.
- Inspect fan: Remove the top cover and check the fan for debris or bent blades. Tighten the fan hub set screw if loose.
- Check mounting: Ensure the heater is level and firmly on the floor. Add vibration-isolating pads under the base if installed on a wood floor.
- Compressor mounts: Inspect compressor mounting grommets for deterioration. Have a technician replace worn mounts.
- Professional diagnosis: If noise is metallic or grinding, have a qualified technician evaluate the fan motor or compressor.
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Repair Difficulty
Medium
3/5
Required Part
Evaporator Fan Motor
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