Aquasana Bypass Valve Seal Wear or Damage

Aquasana softener bypass valve is hard to turn or leaks around the handle

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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 O-rings in Aquasana bypass body, Mineral buildup around seals, Bypass handle shaft seal failure, Physical damage from forcing handle

How to Fix / Troubleshooting

Safety first: Turn off main water supply and relieve pressure before servicing the bypass. Unplug power.

Steps to service bypass valve:

  • 1. Depressurize: Open a faucet to relieve pressure.
  • 2. Exercise handle: Gently move the bypass handle between SERVICE and BYPASS several times to break minor mineral buildup.
  • 3. Inspect for leaks: If water leaks around the handle or body, the internal O-rings are likely worn.
  • 4. Rebuild or replace: Install an Aquasana bypass valve O-ring kit or replace the complete bypass valve assembly following manufacturer instructions.
  • 5. Do not force: Never use tools to force the handle; this can crack the valve body.
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Repair Difficulty

Medium 3/5

Required Part

Bypass Valve Assembly
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