Technivorm Moccamaster
Ground Fault or Short Circuit in Heating Circuit
Unit trips household circuit breaker or GFCI when turned on
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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
Shorted boiler heating element to chassis, Damaged power cord insulation, Water leak contacting live wiring, Internal wiring short at switch or thermostat
How to Fix / Troubleshooting
Safety: Do not repeatedly reset the breaker. Unplug the coffee maker and keep it unplugged until the fault is found.
- Check for moisture: Inspect the exterior for signs of leaks. If the unit recently overflowed or was cleaned aggressively, allow it to dry for 24 hours and test again.
- Inspect power cord: Look for cuts, crushed sections, or exposed wires. Replace the cord if damaged.
- Internal inspection (advanced):
- Remove the base.
- Look for signs of water intrusion, corrosion, or burned wiring.
- Test the boiler element for continuity to ground (chassis). Any continuity indicates a ground fault and the boiler must be replaced.
- Professional service: Ground faults are serious; if you are not experienced with electrical testing, contact a technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Boiler Heating Element Assembly
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