Coffee maker emits a burning smell during operation, even when no visible smoke is present.

Safety first: Unplug immediately if you smell strong burning or see smoke. Do not continue using the appliance until inspected.

• Clean exterior surfaces: Once cool, thoroughly clean the warming plate and surrounding areas to remove any spilled coffee or oils.
• Run a test cycle: With the unit empty and clean, run a short brew cycle while monitoring for smell. If the odor quickly returns, unplug and discontinue use.
• Inspect underside (advanced): Remove the bottom cover (unplugged) and look for darkened plastic, melted insulation, or burnt wiring. Any such signs require professional repair.

Persistent burning smell without visible spills indicates an internal electrical or heater problem. Have the unit serviced or replaced.