RainSoft Brine Tank Overfill

Brine tank fills with too much water between regenerations (no code)

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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

Leaking brine valve, Clogged brine line causing slow drain-back, Defective brine safety float, Incorrect refill setting too high

How to Fix / Troubleshooting

Safety: Put the softener in bypass and unplug it to stop further filling.

  • 1. Check refill setting: Verify the brine refill time or volume is correctly programmed for your RainSoft model.
  • 2. Inspect brine valve: Remove and inspect the brine valve for debris or wear that could prevent full closure. Replace if it leaks when de-energized.
  • 3. Clean brine line: Flush the brine line to ensure it is not partially blocked, which can cause slow equalization and apparent overfill.
  • 4. Service safety float: Clean and test the brine safety float to ensure it shuts off water at the correct level.

Note: Persistent overfill after these steps may indicate a control valve internal leak and require valve service.

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Repair Difficulty

Medium 3/5

Required Part

RainSoft brine valve and safety float assembly
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