Lowara
Electrical Noise / Loose Laminations or Coils
Pump runs but makes a low electrical buzzing noise and performance is erratic
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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 stator laminations, Partially shorted winding, Loose terminal connections causing arcing, Harmonic noise from variable‑speed drive
How to Fix / Troubleshooting
Safety first: Isolate power before tightening terminals or opening enclosures.
- Check terminals: Tighten all motor and control wiring terminals in the Lowara terminal box and control panel.
- Observe under load: If safe, listen to the motor while running. A deep buzz combined with overheating suggests internal motor issues.
- Drive settings: On variable‑speed models, adjust switching frequency or carrier settings per Lowara guidelines to reduce audible noise.
- When to call a pro: Internal motor noise from loose laminations or winding faults requires motor replacement.
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Repair Difficulty
Hard
4/5
Required Part
Lowara pool pump motor and terminal connections
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