E16
Stiebel Eltron
User Interface / Keypad Fault
Display shows E16 and heater does not respond to user input or temperature changes.
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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
Stuck or damaged buttons on control panel, Faulty touch interface, Loose ribbon cable between keypad and display board, Liquid ingress into control panel
How to Fix / Troubleshooting
Safety: Turn off power before removing or handling the control panel.
- Inspect control panel: Check for physical damage, stuck buttons, or signs of water ingress on the front panel.
- Clean around buttons: If buttons are sticking, gently clean around them with a slightly damp cloth (power off) and dry thoroughly.
- Check ribbon cable: Remove the front cover and locate the ribbon cable from the keypad to the display or main board. Reseat the cable at both ends.
- Test operation: Restore power and test button response. If E16 persists or buttons remain unresponsive, the user interface module likely needs replacement with the correct Stiebel Eltron part.
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Repair Difficulty
Medium
3/5
Required Part
User Interface / Keypad Module
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