Pahlen
Motor Bearing Failure
Pahlén pool pump makes a loud grinding or screeching noise while running
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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
Worn front or rear motor bearings, Water ingress into motor, Misalignment between Pahlén pump wet end and motor, Prolonged operation under high load
How to Fix / Troubleshooting
Safety first: Turn off power immediately to prevent further damage. Do not run a pump with loud mechanical noises.
- Confirm source of noise: Remove the pump lid and basket, then briefly rotate the motor shaft by hand (power off). Roughness or grinding indicates bearing wear.
- Check for leaks: Inspect the area between the pump housing and motor for signs of water leakage from the mechanical seal, which can damage bearings.
- Plan for repair: Bearing replacement requires motor disassembly and press tools. In most cases, replacing the complete Pahlén motor or motor-pump assembly is the practical solution.
Continued operation with failed bearings can lead to shaft breakage and further damage to the Pahlén pump.
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Repair Difficulty
Hard
4/5
Required Part
Pump Motor Assembly
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