Electric Bialetti moka or espresso machine powers on but does not heat; coffee remains cold or lukewarm.

Safety first: Unplug the machine and allow it to cool before accessing internal components.

• Check indicator lights: If the heating indicator never turns on, suspect a control or thermostat issue. If it turns on but no heat is produced, suspect the heater or thermal fuse.
• Inspect wiring (advanced): Remove the base or side panel to access the heater terminals. Look for burnt connectors or loose spade terminals and reseat or replace as needed.
• Test heater continuity (advanced): Use a multimeter to measure resistance across the heating element. An open circuit indicates a failed heater that must be replaced.
• Check thermal fuse: Locate the thermal fuse attached to the heater or boiler. Test for continuity; if open, replace with the same temperature and current rating after confirming the cause of overheating.

Heating repairs involve mains voltage and should be done only if you are experienced. Otherwise, contact a service center.