Whirlpool Flow Restriction Through Softener

Softener causes noticeable drop in water pressure throughout the house

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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

Clogged inlet/outlet screens, Fouled resin bed, Undersized softener for flow demand, Partially closed bypass valve

How to Fix / Troubleshooting

Safety first: Place the softener in bypass to restore normal pressure temporarily. Shut off water and relieve pressure before removing plumbing connections.

Steps to check:

  • 1. Compare pressure in bypass vs service: If pressure is normal in bypass but low in service, the restriction is in the softener.
  • 2. Check bypass valve: Ensure the bypass is fully in the service position and not partially closed.
  • 3. Clean inlet/outlet screens: Remove the control valve and inspect any inlet/outlet screens or strainers. Clean debris and reinstall.
  • 4. Evaluate resin condition: If resin is heavily fouled or compacted, it can restrict flow. Resin replacement may be required.

When to call a technician: For resin replacement or if you suspect the softener is undersized for your plumbing, consult a water treatment professional.

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Repair Difficulty

Medium 3/5

Required Part

Inlet/Outlet Screen
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