F14
Melitta
General Mechanical Self-Test Failure
Display shows F14 and the machine cannot complete a self-test or startup sequence.
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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
Brew group not installed, Jammed internal mechanism, Faulty door or service cover switch, Multiple sensor mismatches
How to Fix / Troubleshooting
Safety first: Unplug the machine before checking internal components.
Steps:
- Check brew group: Ensure the brew unit is correctly installed and locked.
- Check doors and covers: Verify that all service doors, bean hopper lids, and tank covers are properly closed and engaging their switches.
- Remove obstructions: Look inside the brew chamber and drip tray area for loose parts or coffee clumps blocking movement.
- Power reset: After checks, reconnect power and allow the machine to run its full startup cycle without interruption.
If F14 continues, a deeper mechanical or electronic fault exists and professional diagnosis is recommended.
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Repair Difficulty
Medium
3/5
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