Err br
Autotrol
Brine system malfunction detected by control
Display shows “Err br” or “Brine Err” and unit aborts regeneration during brine fill or draw
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Possible Causes
Blocked brine line, Stuck brine float, Clogged injector, Air leak in brine fittings
How to Fix / Troubleshooting
Safety: Bypass the softener and relieve pressure before opening brine connections.
- Inspect brine tank: Check that the float assembly moves freely and is not encrusted with salt. Clean or replace the brine float assembly if sticking.
- Check brine line: Remove the brine line from both ends and flush with water. Replace if kinked or brittle.
- Clean injector and screen: Remove and clean the injector/nozzle-venturi and screen to restore proper suction.
- Check for air leaks: Ensure all brine fittings are tight and sealed. Air leaks can prevent brine draw and trigger errors.
- Test regeneration: After reassembly, run a manual regeneration and observe brine movement. Confirm the error does not return.
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Repair Difficulty
Easy
2/5
Required Part
Autotrol brine float assembly
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