Hotplate does not heat or keep coffee warm, but brewing works normally

Safety: Unplug the coffee maker and allow the hotplate to cool completely before inspection.

• Confirm symptom: After a brew cycle, the hotplate should be warm to the touch (but not glowing). If it remains cold, proceed.
• Check hotplate switch: On models with a separate hotplate switch, toggle it several times. If the indicator light does not come on, the switch may be faulty.
• Internal testing (advanced):
  • Remove the bottom cover to access the hotplate wiring.
  • Disconnect the hotplate element leads.
  • Measure resistance across the hotplate element with a multimeter. An open reading indicates a failed element.
  • Test the hotplate thermostat for continuity at room temperature; an open thermostat must be replaced.
• Repair: Replace the hotplate assembly or thermostat with genuine Moccamaster parts. Ensure all connections are secure and insulated.