Wellis
Worn Pump Bearings / Mechanical Failure
Spa makes loud grinding or squealing noise when pump runs
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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
Aged pump motor bearings, Water intrusion through failed shaft seal, Misaligned pump mounting, Debris in wet end
How to Fix / Troubleshooting
Safety first: Turn off power before inspecting the pump. Prolonged operation with grinding noises can cause further damage.
- 1. Identify noisy component:
- Run pumps briefly with cabinet open to locate the source (then turn power OFF).
- 2. Inspect pump:
- Check for wobble or play in the motor shaft.
- Look for water leakage at the shaft seal area.
- 3. Tighten mounting:
- Ensure pump is securely mounted to its base to reduce vibration.
- 4. Replace pump or motor:
- Worn bearings typically require motor replacement or complete pump replacement.
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Repair Difficulty
Hard
4/5
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