E15
Siemens
Internal Communication Bus Error
E15 error, ice maker stops, audible alarm may sound
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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
Faulty main control PCB, Damaged wiring harness between boards, Electrical noise or surge damage, Loose ground connection
How to Fix / Troubleshooting
Safety: Disconnect power before accessing electronic components.
Basic checks:
- Power cycle: Unplug the unit for 10 minutes to allow capacitors to discharge, then reconnect. Temporary glitches may clear.
- Inspect wiring harness: Remove access panels and visually inspect the main harnesses between the control board, display, and sensor modules. Look for pinched, cut, or burnt wires.
- Check grounds: Ensure all ground wires and screws are tight and free of corrosion.
- Surge protection: If the error followed a power surge, the main PCB may be damaged. Replacement of the Siemens control module is typically required.
Note: Board-level repair is not recommended; use only genuine Siemens replacement boards.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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