E6 is displayed and the cooker does not heat; often appears immediately after power‑on or program start.

Safety: Disconnect from mains before opening. Capacitors on the PCB may hold charge; avoid touching tracks unnecessarily.

• Visual inspection: Remove the bottom cover. Inspect the circular heating element under the pot for burn marks, cracks, or broken terminals.
• Check heater continuity: Disconnect the heater leads from the PCB or terminal block. Measure resistance across the heating element; typical values are 20–60 Ω depending on model. Infinite resistance indicates a failed heater that must be replaced.
• Inspect connectors: Look for heat‑damaged spade connectors or loose screws at the heater terminals. Clean and tighten or replace connectors as needed.
• Check PCB fuse and triac/relay: On the control board, inspect the heater relay or triac for visible damage (cracks, burn marks). Test the PCB fuse for continuity and replace with the same rating if blown.
• Reassemble and test: After replacing any faulty parts, reassemble the base, plug in, and run a simple cooking program with water. If E6 persists with a good heater, the control board is likely defective and should be replaced.