Rheem
Failed Mechanical Shaft Seal
Pump housing leaks water at the joint between the motor and the pump body.
Advertisements
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.
Advertisements
Possible Causes
Worn ceramic/carbon seal faces, Improper installation of Rheem shaft seal, Dry running of pump causing seal overheating, Chemical damage from improper water balance
How to Fix / Troubleshooting
Safety First: Turn OFF power and close valves. Relieve pressure by opening the pump lid slowly.
- Disassemble wet end: Remove the motor from the pump housing. Take off the diffuser to access the impeller and seal.
- Remove old seal: Unscrew the impeller and carefully remove both halves of the mechanical seal (rotating and stationary) from the impeller and seal plate.
- Clean seal surfaces: Clean the seal bore and shaft with a lint‑free cloth. Do not scratch the sealing surfaces.
- Install new Rheem‑compatible seal: Press the stationary ceramic half into the seal plate squarely. Slide the rotating carbon/spring half onto the shaft, handling only the metal parts.
- Reassemble and test: Reinstall the impeller, diffuser, and motor. Prime the pump and run while checking for leaks. Avoid running the pump dry to protect the new seal.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Rheem Pump Mechanical Shaft Seal
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements