Coffee maker turns off or stops brewing mid-cycle without any error code.

Safety first: Unplug and allow the unit to cool fully.

• Check ventilation: Ensure the coffee maker has at least several centimeters of clearance on all sides and is not under low cabinets trapping steam.
• Descale: Heavy scale can cause overheating and premature thermal cutoff. Run a full descaling cycle.
• Observe behavior: If the unit always stops at the same point in the cycle, note the timing; this can help a technician diagnose a failing thermal cutoff or relay.
• Internal inspection: Loose connections or failing thermal devices require opening the unit and should be handled by a professional.