Viessmann
Brine System Non-Function Without Error
Softener uses no salt over weeks of operation, but no alarms are shown
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Possible Causes
Salt bridge in brine tank, Blocked brine injector, Brine float stuck closed, Brine line disconnected inside cabinet
How to Fix / Troubleshooting
Safety first: Disconnect power and close the inlet valve before working on the brine system.
- Check salt level change: Mark the salt level and monitor over several days. If unchanged, the unit is not drawing brine.
- Break salt bridge: Probe the salt with a plastic rod to detect and break any bridge. Remove loose chunks and ensure salt can dissolve into the water below.
- Inspect brine float and well: Remove the brine well cover, lift the float, and clean any salt deposits. Ensure free movement.
- Check brine line: Verify that the brine hose is firmly attached at both ends and not cracked or leaking air.
- Clean injector: Remove and clean the injector/venturi on the valve head. Reassemble and run a manual regeneration to confirm brine draw.
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Repair Difficulty
Easy
2/5
Required Part
Viessmann Brine Injector / Brine Line
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