Melitta Unexpected Power-Off / Overheat or Power Supply Issue

Machine turns off by itself during brewing or shortly after starting.

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.

Possible Causes

Overheating thermoblock triggering thermal cutout, Faulty power supply board, Loose mains connection, Internal short causing protection shutdown

Safety first: Unplug the machine immediately if you smell burning or see smoke.

Steps:

Check ventilation: Ensure the machine has at least several centimeters of clearance on all sides and is not enclosed in a cabinet.
Allow cooling: Let the machine cool for 30–60 minutes, then try again.
Check power source: Plug directly into a wall outlet and avoid extension cords.

If the machine continues to shut off, an internal thermal or power supply fault is likely. Professional diagnosis is recommended.

Hard 4/5

Power Supply Board

Check Price on Amazon

We may earn a commission from links on this page.