Multicooker powers on but will not heat; programs run but food remains uncooked.

Safety: Disconnect from mains and allow the cooker to cool before opening the base.

• Confirm symptom: Start a cooking program and check if the heating plate warms up after a few minutes. If it stays cold, proceed.
• Access heater terminals: Remove the bottom cover to expose the heating element connections. Look for burnt connectors or loose spades.
• Test heater: Disconnect the heater leads and measure resistance. An infinite reading indicates a failed main heating element that must be replaced.
• Check thermal fuse: Locate the thermal fuse attached to the heater. Test continuity; if open, replace with the exact temperature and current rating.
• Inspect relay/triac: If the heater and fuse are good, the control PCB’s switching device is likely faulty. Replace the control PCB or have the relay/triac replaced by a professional.