E17
Foridra
Communication Bus Fault
E17 error and the unit reports communication failure between display and main board
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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
Loose communication cable between Foridra display and main PCB, Damaged communication harness, Failed display board, Failed main PCB communication driver
How to Fix / Troubleshooting
Safety: Unplug the softener before opening any electronic compartments.
- Check connectors: Remove the control cover and verify that all multi-pin connectors between the display module and main board are fully seated.
- Inspect harness: Look for pinched, cut, or abraded cables. Replace the harness if any damage is found.
- Swap modules (if possible): If you have access to a known-good display or PCB of the same Foridra model, swap one at a time to isolate the faulty component.
- Replace faulty board: Replace the Foridra display module or main control PCB as indicated by testing.
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Repair Difficulty
Hard
4/5
Required Part
Foridra display communication harness / main control PCB
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