Pentair Sta-Rite
Corroded or Frozen Motor / Impeller
Pump will not start after winter; motor is seized
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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
Rust on shaft from moisture, Debris hardened around impeller, Long‑term storage without rotation
How to Fix / Troubleshooting
Safety: Ensure power is off before attempting to turn the shaft.
- Attempt to free shaft: Remove the rear motor cover and try to rotate the shaft with a wrench or screwdriver. Do not use excessive force.
- Disassemble wet end: Remove the pump housing and inspect the impeller for debris or scale buildup. Clean thoroughly.
- Lubricate lightly: Apply a small amount of light oil to the exposed shaft (do not get oil on the shaft seal faces).
- Evaluate condition: If the shaft remains stuck or the motor feels rough when turning, replace the motor assembly.
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Repair Difficulty
Medium
3/5
Required Part
Motor Assembly
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